weixin_44695793的博客

package cn.test.dxc.syc; public class huizong { //同步方法默认用this或者当前类class对象作为锁 public synchronized void methodA(){//默认当前对象 for (int i = 0; i < 5; i++) { System.out.println(Thread.currentThread().getName()+"方法A愉快的打印了"+i);

多线程并发处理数据简单的demo package cn.test.dxc; import java.util.concurrent.Callable; import java.util.concurrent.ExecutionException; import java.util.concurrent.ExecutorService; import java.util.concurrent.Executors; public class test { static int[] arr = n