Java天生就是多线程程序

import java.lang.management.ManagementFactory;
import java.lang.management.ThreadInfo;
import java.lang.management.ThreadMXBean;class Solution {public static void main(String[] args) {// 获取java线程管理的MXBeanThreadMXBean threadMXBean &＃61; ManagementFactory.getThreadMXBean();// 仅获取线程和线程堆栈信息ThreadInfo[] threadInfos &＃61; threadMXBean.dumpAllThreads(false, false);for(ThreadInfo threadInfo: threadInfos){System.out.println("[" &＃43; threadInfo.getThreadId() &＃43; "] " &＃43; threadInfo. getThreadName());}}
}

输出&＃xff1a;

• [5] Ctrl-Break线程是在idea中才有的&＃xff0c;而且还是要用run启动方式
• [4] Signal Dispatcher&＃xff1a;分发处理发送给JVM信号的线程
• [3] Finalizer &＃xff1a;调用对象finalize方法的线程
• [2] Reference Handler&＃xff1a;清除Reference的线程
• [1] main&＃xff1a;main线程&＃xff0c;用户程序入口