init
This commit is contained in:
commit
a74cf2f287
|
|
@ -0,0 +1,8 @@
|
|||
# Default ignored files
|
||||
/shelf/
|
||||
/workspace.xml
|
||||
# Editor-based HTTP Client requests
|
||||
/httpRequests/
|
||||
# Datasource local storage ignored files
|
||||
/dataSources/
|
||||
/dataSources.local.xml
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<module type="JAVA_MODULE" version="4">
|
||||
<component name="NewModuleRootManager" inherit-compiler-output="true">
|
||||
<exclude-output />
|
||||
<content url="file://$MODULE_DIR$">
|
||||
<sourceFolder url="file://$MODULE_DIR$" isTestSource="false" />
|
||||
</content>
|
||||
<orderEntry type="inheritedJdk" />
|
||||
<orderEntry type="sourceFolder" forTests="false" />
|
||||
<orderEntry type="library" name="KotlinJavaRuntime" level="project" />
|
||||
</component>
|
||||
</module>
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
<component name="ProjectCodeStyleConfiguration">
|
||||
<state>
|
||||
<option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
|
||||
</state>
|
||||
</component>
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="Kotlin2JvmCompilerArguments">
|
||||
<option name="jvmTarget" value="1.8" />
|
||||
</component>
|
||||
</project>
|
||||
|
|
@ -0,0 +1,23 @@
|
|||
<component name="libraryTable">
|
||||
<library name="KotlinJavaRuntime" type="repository">
|
||||
<properties maven-id="org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.9.24" />
|
||||
<CLASSES>
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.9.24/kotlin-stdlib-jdk8-1.9.24.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib/1.9.24/kotlin-stdlib-1.9.24.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/annotations/13.0/annotations-13.0.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk7/1.9.24/kotlin-stdlib-jdk7-1.9.24.jar!/" />
|
||||
</CLASSES>
|
||||
<JAVADOC>
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.9.24/kotlin-stdlib-jdk8-1.9.24-javadoc.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib/1.9.24/kotlin-stdlib-1.9.24-javadoc.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/annotations/13.0/annotations-13.0-javadoc.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk7/1.9.24/kotlin-stdlib-jdk7-1.9.24-javadoc.jar!/" />
|
||||
</JAVADOC>
|
||||
<SOURCES>
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.9.24/kotlin-stdlib-jdk8-1.9.24-sources.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib/1.9.24/kotlin-stdlib-1.9.24-sources.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/annotations/13.0/annotations-13.0-sources.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk7/1.9.24/kotlin-stdlib-jdk7-1.9.24-sources.jar!/" />
|
||||
</SOURCES>
|
||||
</library>
|
||||
</component>
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="21" project-jdk-type="JavaSDK">
|
||||
<output url="file://$PROJECT_DIR$/out" />
|
||||
</component>
|
||||
</project>
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="ProjectModuleManager">
|
||||
<modules>
|
||||
<module fileurl="file://$PROJECT_DIR$/.idea/Kotlin-Demo.iml" filepath="$PROJECT_DIR$/.idea/Kotlin-Demo.iml" />
|
||||
</modules>
|
||||
</component>
|
||||
</project>
|
||||
|
|
@ -0,0 +1,124 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="Palette2">
|
||||
<group name="Swing">
|
||||
<item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
|
||||
</item>
|
||||
<item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
|
||||
</item>
|
||||
<item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
|
||||
</item>
|
||||
<item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.svg" removable="false" auto-create-binding="false" can-attach-label="true">
|
||||
<default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
|
||||
</item>
|
||||
<item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
|
||||
<initial-values>
|
||||
<property name="text" value="Button" />
|
||||
</initial-values>
|
||||
</item>
|
||||
<item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
|
||||
<initial-values>
|
||||
<property name="text" value="RadioButton" />
|
||||
</initial-values>
|
||||
</item>
|
||||
<item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
|
||||
<initial-values>
|
||||
<property name="text" value="CheckBox" />
|
||||
</initial-values>
|
||||
</item>
|
||||
<item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
|
||||
<initial-values>
|
||||
<property name="text" value="Label" />
|
||||
</initial-values>
|
||||
</item>
|
||||
<item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
|
||||
<preferred-size width="150" height="-1" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
|
||||
<preferred-size width="150" height="-1" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
|
||||
<preferred-size width="150" height="-1" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
|
||||
</item>
|
||||
<item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
|
||||
<preferred-size width="200" height="200" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
|
||||
<preferred-size width="200" height="200" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
|
||||
</item>
|
||||
<item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
|
||||
</item>
|
||||
<item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
|
||||
</item>
|
||||
<item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
|
||||
</item>
|
||||
<item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
|
||||
<preferred-size width="-1" height="20" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
|
||||
</item>
|
||||
<item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
|
||||
</item>
|
||||
</group>
|
||||
</component>
|
||||
</project>
|
||||
|
|
@ -0,0 +1,55 @@
|
|||
val items = listOf("apple", "banana", "kiwifruit")
|
||||
|
||||
fun main() {
|
||||
for (item in items) {
|
||||
println(item)
|
||||
}
|
||||
|
||||
println("----------------")
|
||||
|
||||
for (index in items.indices) {
|
||||
println("item 在 $index 是 ${items[index]}")
|
||||
}
|
||||
|
||||
println("----------------像是Switch--------------")
|
||||
println(describe(1))
|
||||
println(describe("Hello"))
|
||||
println(describe(1000L))
|
||||
println(describe(2))
|
||||
println(describe("other"))
|
||||
|
||||
println("----------------Ranges------------")
|
||||
rangeTest()
|
||||
|
||||
println("----------------for..in..------------")
|
||||
forTest()
|
||||
}
|
||||
|
||||
// 使用when
|
||||
fun describe(obj: Any): Any = when (obj) {
|
||||
1 -> "是一"
|
||||
"Hello" -> "Greeting"
|
||||
is Long -> "Long"
|
||||
!is String -> "Not a string"
|
||||
else -> "Unknown"
|
||||
}
|
||||
|
||||
// 范围测试
|
||||
fun rangeTest() {
|
||||
val x = 10
|
||||
val y = 100
|
||||
|
||||
if (x in 1..y + 1) {
|
||||
println("1 在这个范围里")
|
||||
}
|
||||
|
||||
if (-1 !in 1..y + 1) {
|
||||
println("-1 不在这个范围里")
|
||||
}
|
||||
}
|
||||
|
||||
fun forTest() {
|
||||
for (x in 1..5) {
|
||||
println(x)
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,69 @@
|
|||
package jTest;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.nio.file.Files;
|
||||
import java.nio.file.Path;
|
||||
import java.util.Map;
|
||||
|
||||
public class FIleCopyBase {
|
||||
public static void main(String[] args) throws IOException {
|
||||
Path source = Path.of("D:\\Project\\demo\\source\\神偷奶爸4.ts");
|
||||
Path target = Path.of("D:\\Project\\demo\\target\\神偷奶爸4.ts");
|
||||
|
||||
// 复制速度很快
|
||||
Path copyPath = Files.copy(source, target);
|
||||
System.out.println("输出复制完成后的路径" + copyPath);
|
||||
|
||||
// 删除文件，文件不存在或者目录不存在会抛出异常
|
||||
Files.delete(target);
|
||||
|
||||
// 删除文件如果存在就删除，不存在不会抛出异常
|
||||
Files.deleteIfExists(target);
|
||||
|
||||
// 移动文件
|
||||
Path movePath = Files.move(source, target);
|
||||
System.out.println("输出移动完成后的路径" + movePath);
|
||||
|
||||
// 判断文件是否存在
|
||||
boolean exists = Files.exists(source);
|
||||
System.out.println(exists);
|
||||
|
||||
// 是否为隐藏文件
|
||||
boolean hidden = Files.isHidden(target);
|
||||
System.out.println(hidden);
|
||||
|
||||
// 判断是否为目录
|
||||
boolean directory = Files.isDirectory(target);
|
||||
System.out.println(directory);
|
||||
|
||||
// 检查指定路径是否可读取。当文件或目录具有读取权限时，Files.isReadable() 方法将返回 true，否则返回 false。
|
||||
boolean readable = Files.isReadable(target);
|
||||
System.out.println(readable);
|
||||
|
||||
// 表示是否是可执行的文件
|
||||
boolean executable = Files.isExecutable(target);
|
||||
System.out.println(executable);
|
||||
|
||||
// 是否表示一个常规文件，是指不是目录或符号链接的文件
|
||||
boolean regularFile = Files.isRegularFile(target);
|
||||
System.out.println(regularFile);
|
||||
|
||||
// 检查文件是否相同
|
||||
Files.copy(target, source);
|
||||
boolean sameFile = Files.isSameFile(target, source);
|
||||
System.out.println(sameFile);
|
||||
|
||||
// 是否表示一个符号链接
|
||||
boolean symbolicLink = Files.isSymbolicLink(target);
|
||||
System.out.println(symbolicLink);
|
||||
|
||||
// 文件按字节的大小
|
||||
long size = Files.size(target);
|
||||
System.out.println(size);
|
||||
|
||||
// 读取指定文件的属性，如果第二个参数为空字符串，将返回所有基本文件属性。
|
||||
// {lastAccessTime=2024-08-10T15:37:23.5577285Z, lastModifiedTime=2024-08-10T08:18:39.377836Z, size=1158625012, creationTime=2024-08-10T15:12:56.5838403Z, isSymbolicLink=false, isRegularFile=true, fileKey=null, isOther=false, isDirectory=false}
|
||||
Map<String, Object> stringObjectMap = Files.readAttributes(source, "basic:*");
|
||||
System.out.println(stringObjectMap);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,43 @@
|
|||
package jTest;
|
||||
|
||||
import java.util.HashMap;
|
||||
|
||||
public class HasMapTest {
|
||||
public static void main(String[] args) {
|
||||
// 如果使用的是 Map 没用直接的 forEach
|
||||
HashMap<String, Object> hashMap = new HashMap<>();
|
||||
hashMap.put("a", 1);
|
||||
hashMap.put("b", 2);
|
||||
hashMap.put("c", 3);
|
||||
hashMap.put("d", 4);
|
||||
hashMap.put("e", 5);
|
||||
|
||||
// 如果在这个Map中没用找到这个键返回默认的值 666
|
||||
System.out.println(hashMap.getOrDefault("n", 666));
|
||||
|
||||
// 拿到a的键
|
||||
System.out.println(hashMap.get("a"));
|
||||
|
||||
// 是否包含键 a
|
||||
System.out.println(hashMap.containsKey("a"));
|
||||
|
||||
// 是否包含值
|
||||
System.out.println(hashMap.containsValue(1));
|
||||
|
||||
// 遍历 hashMap
|
||||
hashMap.forEach((s, o) -> {
|
||||
System.out.println("key：" + s);
|
||||
System.out.println("value：" + o);
|
||||
});
|
||||
hashMap.entrySet().forEach(System.out::println);
|
||||
|
||||
// 将所以的键都添加到 hashMap 中
|
||||
HashMap<String, Object> addAllMap = new HashMap<>();
|
||||
addAllMap.put("f", 6);
|
||||
addAllMap.put("g", 7);
|
||||
addAllMap.put("h", 8);
|
||||
addAllMap.put("i", 9);
|
||||
hashMap.putAll(addAllMap);
|
||||
System.out.println(hashMap);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,72 @@
|
|||
package jTest;
|
||||
|
||||
import java.util.HashSet;
|
||||
import java.util.NavigableSet;
|
||||
import java.util.SortedSet;
|
||||
import java.util.TreeSet;
|
||||
|
||||
public class HashSetTest {
|
||||
public static void main(String[] args) {
|
||||
// 删除重复的元素
|
||||
HashSet<String> hashSet = new HashSet<>() {
|
||||
{
|
||||
add("a");
|
||||
add("b");
|
||||
add("c");
|
||||
add("d");
|
||||
add("e");
|
||||
add("a");
|
||||
}
|
||||
};
|
||||
System.out.println(hashSet);// [a, b, c, d, e]
|
||||
hashSet.forEach(System.out::println);
|
||||
|
||||
// TreeSet 会自动排序，即使是乱序也会自动排序
|
||||
TreeSet<String> treeSet = new TreeSet<>() {
|
||||
{
|
||||
add("a");
|
||||
add("b");
|
||||
add("d");
|
||||
add("e");
|
||||
add("c");
|
||||
}
|
||||
};
|
||||
System.out.println(treeSet);// [a, b, c, d, e]
|
||||
treeSet.forEach(System.out::println);
|
||||
|
||||
// 排序Tree
|
||||
SortedSet<String> sortedSet = new TreeSet<>() {{
|
||||
add("a");
|
||||
add("b");
|
||||
add("d");
|
||||
add("e");
|
||||
add("c");
|
||||
}};
|
||||
System.out.println(sortedSet);// [a, b, c, d, e]
|
||||
sortedSet.forEach(System.out::println);
|
||||
|
||||
NavigableSet<String> navigableSet = new TreeSet<>() {{
|
||||
add("a");
|
||||
add("b");
|
||||
add("d");
|
||||
add("e");
|
||||
add("c");
|
||||
}};
|
||||
System.out.println(navigableSet);// [a, b, c, d, e]
|
||||
// 大于a的元素，没用返回null
|
||||
System.out.println(navigableSet.higher("a"));// b
|
||||
// 小于a的元素，没用返回null
|
||||
System.out.println(navigableSet.lower("a"));// null
|
||||
// 小于等于b的元素，没有返回null
|
||||
System.out.println(navigableSet.floor("b"));// b
|
||||
// 大于等于 a 的元素，没用返回null
|
||||
System.out.println(navigableSet.ceiling("a"));// a
|
||||
|
||||
// 删除第一个元素
|
||||
navigableSet.pollFirst();
|
||||
System.out.println(navigableSet);// [b, c, d, e]
|
||||
// 删除最后一个元素
|
||||
navigableSet.pollLast();
|
||||
System.out.println(navigableSet);// [b, c, d]
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,40 @@
|
|||
package jTest;
|
||||
|
||||
import java.util.SortedMap;
|
||||
import java.util.TreeMap;
|
||||
|
||||
public class TreeMapTest {
|
||||
public static void main(String[] args) {
|
||||
TreeMap<String, Object> treeMap = new TreeMap<>() {{
|
||||
put("c", 3);
|
||||
put("a", 1);
|
||||
put("b", 2);
|
||||
put("e", 5);
|
||||
put("d", 4);
|
||||
}};
|
||||
|
||||
// 会自动排序
|
||||
System.out.println(treeMap);
|
||||
|
||||
// 遍历集合
|
||||
treeMap.forEach((key, value) -> {
|
||||
System.out.println("key：" + key);
|
||||
System.out.println("value：" + value);
|
||||
});
|
||||
|
||||
|
||||
SortedMap<String, Object> sortedMap = new TreeMap<>() {{
|
||||
put("c", 3);
|
||||
put("a", 1);
|
||||
put("b", 2);
|
||||
put("e", 5);
|
||||
put("d", 4);
|
||||
}};
|
||||
|
||||
// 拿到第一个值
|
||||
System.out.println(sortedMap.firstKey());
|
||||
|
||||
// 最后一个值
|
||||
System.out.println(sortedMap.lastKey());
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
# Default ignored files
|
||||
/shelf/
|
||||
/workspace.xml
|
||||
# Editor-based HTTP Client requests
|
||||
/httpRequests/
|
||||
# Datasource local storage ignored files
|
||||
/dataSources/
|
||||
/dataSources.local.xml
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<module type="JAVA_MODULE" version="4">
|
||||
<component name="NewModuleRootManager" inherit-compiler-output="true">
|
||||
<exclude-output />
|
||||
<content url="file://$MODULE_DIR$">
|
||||
<sourceFolder url="file://$MODULE_DIR$" isTestSource="false" />
|
||||
</content>
|
||||
<orderEntry type="inheritedJdk" />
|
||||
<orderEntry type="sourceFolder" forTests="false" />
|
||||
<orderEntry type="library" name="KotlinJavaRuntime" level="project" />
|
||||
</component>
|
||||
</module>
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
<component name="ProjectCodeStyleConfiguration">
|
||||
<state>
|
||||
<option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
|
||||
</state>
|
||||
</component>
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="Kotlin2JvmCompilerArguments">
|
||||
<option name="jvmTarget" value="1.8" />
|
||||
</component>
|
||||
</project>
|
||||
|
|
@ -0,0 +1,23 @@
|
|||
<component name="libraryTable">
|
||||
<library name="KotlinJavaRuntime" type="repository">
|
||||
<properties maven-id="org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.9.24" />
|
||||
<CLASSES>
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.9.24/kotlin-stdlib-jdk8-1.9.24.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib/1.9.24/kotlin-stdlib-1.9.24.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/annotations/13.0/annotations-13.0.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk7/1.9.24/kotlin-stdlib-jdk7-1.9.24.jar!/" />
|
||||
</CLASSES>
|
||||
<JAVADOC>
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.9.24/kotlin-stdlib-jdk8-1.9.24-javadoc.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib/1.9.24/kotlin-stdlib-1.9.24-javadoc.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/annotations/13.0/annotations-13.0-javadoc.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk7/1.9.24/kotlin-stdlib-jdk7-1.9.24-javadoc.jar!/" />
|
||||
</JAVADOC>
|
||||
<SOURCES>
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.9.24/kotlin-stdlib-jdk8-1.9.24-sources.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib/1.9.24/kotlin-stdlib-1.9.24-sources.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/annotations/13.0/annotations-13.0-sources.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk7/1.9.24/kotlin-stdlib-jdk7-1.9.24-sources.jar!/" />
|
||||
</SOURCES>
|
||||
</library>
|
||||
</component>
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="21" project-jdk-type="JavaSDK">
|
||||
<output url="file://$PROJECT_DIR$/out" />
|
||||
</component>
|
||||
</project>
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="ProjectModuleManager">
|
||||
<modules>
|
||||
<module fileurl="file://$PROJECT_DIR$/.idea/Kotlin-Demo.iml" filepath="$PROJECT_DIR$/.idea/Kotlin-Demo.iml" />
|
||||
</modules>
|
||||
</component>
|
||||
</project>
|
||||
|
|
@ -0,0 +1,124 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="Palette2">
|
||||
<group name="Swing">
|
||||
<item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="1" hsize-policy="6" anchor="0" fill="1" />
|
||||
</item>
|
||||
<item class="com.intellij.uiDesigner.VSpacer" tooltip-text="Vertical Spacer" icon="/com/intellij/uiDesigner/icons/vspacer.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="1" anchor="0" fill="2" />
|
||||
</item>
|
||||
<item class="javax.swing.JPanel" icon="/com/intellij/uiDesigner/icons/panel.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3" />
|
||||
</item>
|
||||
<item class="javax.swing.JScrollPane" icon="/com/intellij/uiDesigner/icons/scrollPane.svg" removable="false" auto-create-binding="false" can-attach-label="true">
|
||||
<default-constraints vsize-policy="7" hsize-policy="7" anchor="0" fill="3" />
|
||||
</item>
|
||||
<item class="javax.swing.JButton" icon="/com/intellij/uiDesigner/icons/button.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="3" anchor="0" fill="1" />
|
||||
<initial-values>
|
||||
<property name="text" value="Button" />
|
||||
</initial-values>
|
||||
</item>
|
||||
<item class="javax.swing.JRadioButton" icon="/com/intellij/uiDesigner/icons/radioButton.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
|
||||
<initial-values>
|
||||
<property name="text" value="RadioButton" />
|
||||
</initial-values>
|
||||
</item>
|
||||
<item class="javax.swing.JCheckBox" icon="/com/intellij/uiDesigner/icons/checkBox.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="3" anchor="8" fill="0" />
|
||||
<initial-values>
|
||||
<property name="text" value="CheckBox" />
|
||||
</initial-values>
|
||||
</item>
|
||||
<item class="javax.swing.JLabel" icon="/com/intellij/uiDesigner/icons/label.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="0" anchor="8" fill="0" />
|
||||
<initial-values>
|
||||
<property name="text" value="Label" />
|
||||
</initial-values>
|
||||
</item>
|
||||
<item class="javax.swing.JTextField" icon="/com/intellij/uiDesigner/icons/textField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
|
||||
<preferred-size width="150" height="-1" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JPasswordField" icon="/com/intellij/uiDesigner/icons/passwordField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
|
||||
<preferred-size width="150" height="-1" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JFormattedTextField" icon="/com/intellij/uiDesigner/icons/formattedTextField.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1">
|
||||
<preferred-size width="150" height="-1" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JTextArea" icon="/com/intellij/uiDesigner/icons/textArea.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JTextPane" icon="/com/intellij/uiDesigner/icons/textPane.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JEditorPane" icon="/com/intellij/uiDesigner/icons/editorPane.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JComboBox" icon="/com/intellij/uiDesigner/icons/comboBox.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="0" hsize-policy="2" anchor="8" fill="1" />
|
||||
</item>
|
||||
<item class="javax.swing.JTable" icon="/com/intellij/uiDesigner/icons/table.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JList" icon="/com/intellij/uiDesigner/icons/list.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="2" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JTree" icon="/com/intellij/uiDesigner/icons/tree.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3">
|
||||
<preferred-size width="150" height="50" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JTabbedPane" icon="/com/intellij/uiDesigner/icons/tabbedPane.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
|
||||
<preferred-size width="200" height="200" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JSplitPane" icon="/com/intellij/uiDesigner/icons/splitPane.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="3" hsize-policy="3" anchor="0" fill="3">
|
||||
<preferred-size width="200" height="200" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JSpinner" icon="/com/intellij/uiDesigner/icons/spinner.svg" removable="false" auto-create-binding="true" can-attach-label="true">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
|
||||
</item>
|
||||
<item class="javax.swing.JSlider" icon="/com/intellij/uiDesigner/icons/slider.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="8" fill="1" />
|
||||
</item>
|
||||
<item class="javax.swing.JSeparator" icon="/com/intellij/uiDesigner/icons/separator.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="6" anchor="0" fill="3" />
|
||||
</item>
|
||||
<item class="javax.swing.JProgressBar" icon="/com/intellij/uiDesigner/icons/progressbar.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1" />
|
||||
</item>
|
||||
<item class="javax.swing.JToolBar" icon="/com/intellij/uiDesigner/icons/toolbar.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="6" anchor="0" fill="1">
|
||||
<preferred-size width="-1" height="20" />
|
||||
</default-constraints>
|
||||
</item>
|
||||
<item class="javax.swing.JToolBar$Separator" icon="/com/intellij/uiDesigner/icons/toolbarSeparator.svg" removable="false" auto-create-binding="false" can-attach-label="false">
|
||||
<default-constraints vsize-policy="0" hsize-policy="0" anchor="0" fill="1" />
|
||||
</item>
|
||||
<item class="javax.swing.JScrollBar" icon="/com/intellij/uiDesigner/icons/scrollbar.svg" removable="false" auto-create-binding="true" can-attach-label="false">
|
||||
<default-constraints vsize-policy="6" hsize-policy="0" anchor="0" fill="2" />
|
||||
</item>
|
||||
</group>
|
||||
</component>
|
||||
</project>
|
||||
Binary file not shown.
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|
|
@ -0,0 +1,79 @@
|
|||
package test1
|
||||
|
||||
fun main() {
|
||||
println("Hello world!")
|
||||
}
|
||||
|
||||
var x = 2
|
||||
var y: Int = 2
|
||||
val z: Int = 2
|
||||
|
||||
|
||||
fun main(array: Array<String>) {
|
||||
println(array.contentToString())
|
||||
print("Hello ")
|
||||
print("world!\n")
|
||||
main()
|
||||
println(42)
|
||||
val sum = sum(1, 2)
|
||||
println(sum)
|
||||
val sum2 = sum2(1, 6)
|
||||
println(sum2)
|
||||
println("总和为：$sum and $sum2 那么sum和sum2相加为：${sum + sum2}")
|
||||
|
||||
val basicSyntax = BasicSyntax(2.0000, 6.0)
|
||||
println(basicSyntax.percent)
|
||||
|
||||
// 模板字符串
|
||||
var a = 1
|
||||
val b = "a 是 $a"
|
||||
a = 2
|
||||
val c = "${b.replace("是", "就是")}，但是现在的a是 $a"
|
||||
println(c)
|
||||
|
||||
// 返回最大值
|
||||
println(BasicSyntax(1.0,2.0).maxOf(1, 2))
|
||||
println(BasicSyntax(1.0,2.0).maxOf2(1, 2))
|
||||
println(maxOf3(1, 2))
|
||||
|
||||
// 循环
|
||||
val items = listOf("11", "22", "23", "24", "25")
|
||||
for (item in items) {
|
||||
println(item)
|
||||
}
|
||||
for (index in items.indices) {
|
||||
println(index)
|
||||
}
|
||||
}
|
||||
|
||||
fun sum(a: Int, b: Int): Int {
|
||||
return a + b
|
||||
}
|
||||
|
||||
fun sum2(a: Int, b: Int) = a + b
|
||||
|
||||
class BasicSyntax(height: Double, length: Double) {
|
||||
val percent = (height + length) * 2
|
||||
fun maxOf(a: Int, b: Int): Int {
|
||||
if (a > b) {
|
||||
return a
|
||||
} else {
|
||||
return b
|
||||
}
|
||||
}
|
||||
|
||||
fun maxOf2(a: Int, b: Int): Int {
|
||||
return if (a > b) {
|
||||
a
|
||||
} else {
|
||||
b
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* The comment starts here
|
||||
/* contains a nested comment */
|
||||
and ends here. */
|
||||
|
||||
|
||||
fun maxOf3(a:Int,b:Int)=if (a>b)a else b
|
||||
Loading…
Reference in New Issue