标签：java
一：线程操作范例（1）
package com.cloud.day6;
public class Demo1 {
publicstatic void main(String[] args) {
MyThreadmt1=new MyThread("线程A", 1000);
MyThreadmt2=new MyThread("线程B", 2000);
MyThreadmt3=new MyThread("线程C", 3000);
mt1.start();
mt2.start();
mt3.start();
}
}
class MyThread extends Thread{
privateint time;
publicMyThread(String name,int time){
super(name);
this.time=time;
}
publicvoid run(){
try{
Thread.sleep(this.time);
}catch (Exception e) {
e.printStackTrace();
}
System.out.println(Thread.currentThread().getName()+",休眠"+this.time);
}
}
二：线程操作范例（2）
package com.cloud.day6;
public class Demo1 {
publicstatic void main(String[] args) {
MyThreadmt1=new MyThread("线程A", 1000);
MyThreadmt2=new MyThread("线程B", 2000);
MyThreadmt3=new MyThread("线程C", 3000);
newThread(mt1).start();
newThread(mt2).start();
newThread(mt3).start();
}
}
class MyThread implements Runnable{
privateString name;
privateint time;
publicMyThread(String name,int time){
this.name=name;
this.time=time;
}
publicvoid run(){
try{
Thread.sleep(this.time);
}catch (Exception e) {
e.printStackTrace();
}
System.out.println(this.name+",休眠"+this.time);
}
}
三：线程中的同步售票问题
package com.cloud.day6;
public class Demo1 {
publicstatic void main(String[] args) {
MyThreadmt1=new MyThread();
Threadt1=new Thread(mt1);
Threadt2=new Thread(mt1);
Threadt3=new Thread(mt1);
t1.start();
t2.start();
t3.start();
}
}
class MyThread implements Runnable{
privateint ticket=5;
publicvoid run(){
for(inti=0;i<100;i++){
this.sale();
}
}
publicsynchronized void sale(){
if(ticket>0){
try{
Thread.sleep(3000);
}catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("卖了一张票，剩下票："+(--ticket)+"张");
}
}
}
四：线程死锁问题
即：两个线程都在等待对方执行
packagecom.cloud.day6;
publicclass Demo2 {
public static void main(String[] args) {
MyThread1 mt1=new MyThread1();
MyThread1 mt2=new MyThread1();
mt1.flag=true;
mt2.flag=false;
Thread th1=new Thread(mt1);
Thread th2=new Thread(mt2);
th1.start();
th2.start();
}
}
classZhansan{
public void say(){
System.out.println("张三：你给我画，我给你书");
}
public void get(){
System.out.println("张三得到画了");
}
}
classLisi{
public void say(){
System.out.println("李四：你给我书，我给你画");
}
public void get(){
System.out.println("李四得到书了");
}
}
classMyThread1 implements Runnable{
private static Zhansan zs=new Zhansan();
private static Lisi is=new Lisi();
public boolean flag=false;
@Override
public void run() {
if(flag){
synchronized (zs) {
zs.say();
try {
Thread.sleep(500);
} catch(InterruptedException e) {
e.printStackTrace();
}
synchronized (is) {
zs.get();
}
}
}
else{
synchronized (is) {
is.say();
try {
Thread.sleep(500);
} catch(InterruptedException e) {
e.printStackTrace();
}
synchronized (zs) {
is.get();
}
}
}
}
}
版权声明：博主原创文章，转载请说明出处。http://blog.csdn.net/dzy21
标签：java
原文地址：http://blog.csdn.net/dzy21/article/details/47427719
