public enum State {
NEW, //新建状态,创建了线程对象
RUNNABLE, //(睡眠完成之后||等待事件消除转为就绪)调用start方法,就绪状态 就绪状态或者了cpu使用权,转为运行状态(枚举未有) ;失去cpu执行权,或者调用了 yield()方法 转为 就绪状态
BLOCKED, //阻塞状态,同步等待锁对象池 获得锁对象转为就绪状态
WAITING, //等待状态 1)sleep() 2)join() 3)wait()
TIMED_WAITING, //等待状态
TERMINATED; //终止状态 1)run方法运行结束 2)调用stop方法
}
/*线程休眠:Thread.sleep(2000)
*1)静态方法,通过类名调用
* 2)sleep()方法所在的线程睡眠
* 3)2000为毫秒
* */
public class ThreadSleep {
public static void main(String[] args) {
Thread t1 = new Thread(new Runnable() {
@Override
public void run() {
for(int i=0;i<100;i++){
System.out.println(Thread.currentThread().getName()+i);
//当i为20,睡眠5秒
if(i==20){
try {
Thread.sleep(5000); //run()定义没有抛出异常,重写也不能抛出异常
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
});
t1.start();
}
}
//线程中断
public class ThreadInterrupt {
public static void main(String[] args) {
Thread t1 = new Thread(new Runnable() {
@Override
public void run() {
for(int i=0;i<100;i++){
System.out.println(Thread.currentThread().getName()+i);
//当i为20,睡眠5秒
if(i==20){
try {
Thread.sleep(5000); //run()定义没有抛出异常,重写也不能抛出异常
//如果当前线程睡眠中断会产生异常
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
});
t1.start();
//main线程
for(int i=1;i<70;i++){
System.out.println(Thread.currentThread().getName()+"----<"+i);
}
//当main线程结束,将t1唤醒
t1.interrupt();
}
}
public class ThreadYield {
public static void main(String[] args) {
Thread t1 = new Thread(new Runnable() {
@Override
public void run() {
for(int i=0;i<100;i++){
System.out.println(Thread.currentThread().getName()+1);
if(i%10==0){
Thread.yield(); //线程让步,当前线程会释放cpu执行权,转为就绪状态
}
}
}
});
t1.start();
Thread t2 = new Thread(new Runnable() {
@Override
public void run() {
for(int i=0;i<100;i++){
System.out.println(Thread.currentThread().getName()+"---->"+1);
}
}
});
t2.start();
}
}
public class ThreadJoin {
public static void main(String[] args) {
Thread t1 = new Thread(new Runnable() {
@Override
public void run() {
for(int i=1;i<50;i++){
System.out.println(Thread.currentThread().getName()+i);
}
}
});
t1.start();
Thread t2 = new Thread(new Runnable() {
@Override
public void run() {
for(int i=1;i<50;i++){
System.out.println(Thread.currentThread().getName()+i);
if(i==20){
try {
t1.join();//当i=20,加入t1线程,当前线程转为等待状态,等t1线程执行完之后,当前线程转为就绪状态
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
});
t2.start();
}
}
Thread t1 = new Thread(new Runnable() {
@Override
public void run() {
for(int i=0;i<100;i++){
System.out.println(Thread.currentThread().getName()+i);
}
}
});
t1.start();
for(int i=0;i<20;i++){
System.out.println(Thread.currentThread().getName()+"---->"+i);
}
t1.stop();//main方法结束 将t1线程终止
public class ThreadStop extends Thread {
boolean running = true;//线程运行标志
public void run() {
for (int i = 0; running & i < 300; i++) {
System.out.println(Thread.currentThread().getName() + "---" + i);
}
}
}
class test10 {
public static void main(String[] args) {
ThreadStop t1 = new ThreadStop();
t1.start();
for (int i = 0; i < 100; i++) {
System.out.println(Thread.currentThread().getName() + "main----" + i);
}
t1.running = false;//修改子线程的标志
}
}
public class ThreadStop1 implements Runnable{
boolean stopping = false;
@Override
public void run() {
for(int i=1;i<300;i++){
if(stopping){
return;//结束run方法执行
}
System.out.println(Thread.currentThread().getName()+"----"+i);
}
}
}
class test11{
public static void main(String[] args) {
ThreadStop1 t2=new ThreadStop1();
new Thread(t2).start();
//main线程
for(int i=1;i<=100;i++){
System.out.println(Thread.currentThread().getName()+i);
}
t2.stopping=true;//修改实现类 的标志
}
}
原文:https://www.cnblogs.com/nanao/p/15142471.html