package bunny.thread; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; public class ThreadTest5 { public static void main(String[] args) { ExecutorService pool1 = Executors.newFixedThreadPool(4); pool1.execute(() -> { }); pool1.submit(() -> { }); pool1.shutdown(); pool1.shutdownNow(); pool1.close(); } }