以下实例演示了如何通过继承 thread 类并使用 currentthread.getname() 方法来监测线程的状态：
/*
author by w3cschool.cc
main.java
*/class mythread extends thread{
boolean waiting= true;
boolean ready= false;
mythread() {
}
public void run() {
string thrdname = thread.currentthread().getname();
system.out.println(thrdname + " starting.");
while(waiting)
system.out.println("waiting:"+waiting);
system.out.println("waiting...");
startwait();
try {
thread.sleep(1000);
}
catch(exception exc) {
system.out.println(thrdname + " interrupted.");
}
system.out.println(thrdname + " terminating.");
}
synchronized void startwait() {
try {
while(!ready) wait();
}
catch(interruptedexception exc) {
system.out.println("wait() interrupted");
}
}
synchronized void notice() {
ready = true;
notify();
}}public class main {
public static void main(string args[])
throws exception{
mythread thrd = new mythread();
thrd.setname("mythread #1");
showthreadstatus(thrd);
thrd.start();
thread.sleep(50);
showthreadstatus(thrd);
thrd.waiting = false;
thread.sleep(50);
showthreadstatus(thrd);
thrd.notice();
thread.sleep(50);
showthreadstatus(thrd);
while(thrd.isalive())
system.out.println("alive");
showthreadstatus(thrd);
}
static void showthreadstatus(thread thrd) {
system.out.println(thrd.getname() + "alive:=" + thrd.isalive() + " state:=" + thrd.getstate());
}}
以上代码运行输出结果为：
……alive
alivemythread #1 terminating.
alive……
以上就是java 实例 - 状态监测的内容。