32 lines
1017 B
Java
32 lines
1017 B
Java
package bunny.async;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.concurrent.Future;
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public class FutureTest {
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public static void main(String[] args) throws Exception {
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try (ExecutorService executorService = Executors.newSingleThreadExecutor()) {
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Future<Integer> future = executorService.submit(() -> {
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// 模拟一个耗时的计算任务
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Thread.sleep(1000);
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return 42;
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});
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// 检查任务是否完成
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if (future.isDone()) {
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// 等待任务执行完成并获取结果
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Integer result = future.get();
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System.out.println("任务结果: " + result);
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} else {
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System.out.println("任务尚未完成");
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}
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Integer result = future.get();
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System.out.println("任务结果: " + result);
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executorService.shutdown();
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}
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}
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}
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