参考文章:https://blog.csdn.net/carson0408/article/details/79430813
模拟军队
军队的攻击方式
//军队线程
//模拟作战双方的行为
public class ArmyRunnable implements Runnable {
//volatile保证了线程可以正确的读取其他线程写入的值()
//可见性 可以参考ref JMM,happens-before原则
volatile boolean keepRunning=true;
@Override
public void run() {
while(keepRunning) {
//发动5连击
for(int i=0;i<5;i++){
//获取当前线程的名称Thread.currentThread().getName()
System.out.println(Thread.currentThread().getName()+"进攻对方["+i+"]次");
//让出了处理器时间,下次该谁进攻还不一定呢!每次for循环完
Thread.yield();
}
}
System.out.println(Thread.currentThread().getName()+"结束了战斗");
}
}
两支军队的整个攻击场景
//声明Stage类,继承Thread,表明它是一个线程
public class Stage extends Thread {
public void run() {
System.out.println("环境观看军队线程");
//观众等待,5秒钟
try {
Thread.sleep(5000);
} catch (InterruptedException e2) {
// TODO Auto-generated catch block
e2.printStackTrace();
}
//战争大幕徐徐拉开
System.out.println("隋朝末年...");
//隋朝军队
ArmyRunnable armyTaskOfSuiDynasty=new ArmyRunnable();
//起义军队
ArmyRunnable armyTaskOfRevolt=new ArmyRunnable();
//使用Runnable接口创建线程
//隋朝军队线程
Thread armyOfSuiDynasty=new Thread(armyTaskOfSuiDynasty,"隋朝军队");
//起义军队线程
Thread armyOfRevolt=new Thread(armyTaskOfRevolt,"起义军队");
//启动军队作战
armyOfSuiDynasty.start();
armyOfRevolt.start();
//舞台定义休眠为50毫秒,每次
try {
Thread.sleep(50);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("正当双方激战正酣,半路杀出了个程咬金");
Thread mrCheng=new KeyPersonThread();
mrCheng.setName("Mr.程咬金");
System.out.println("程咬金的理想就是结束战争,天下太平");
//军队停止作战
armyTaskOfSuiDynasty.keepRunning=false;
armyTaskOfRevolt.keepRunning=false;
//停战2秒钟
try {
Thread.sleep(2000);
} catch (InterruptedException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
//关键人物
mrCheng.start();
//万众瞩目,所有线程等待程咬金线程完成历史使命
try {
mrCheng.join();
} catch (InterruptedException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
System.out.println("战争结束");
System.out.println("谢谢观看");
try {
armyOfRevolt.join();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//运行
public static void main(String[] args) {
new Stage().start();
}
关键人物的介入
public class KeyPersonThread extends Thread {
public void run() {
System.out.println(Thread.currentThread().getName()+"开始了战斗");
//关键人物可以十连击攻击
for(int i=0;i<10;i++){
System.out.println(Thread.currentThread().getName()+"左突右杀,攻击随军...");
}
System.out.println(Thread.currentThread().getName()+"结束了战斗");
}
}
最后结果
线程之间的交互
import java.util.concurrent.locks.*;
/**
* void wait():让占用了这个同步对象的线程,临时释放当前的占用,并且等待。
* @author ZQQ
*
*/
public class Student {
public int k=0;
public int total;
public int perMonth;
public String name;
Lock lock=new ReentrantLock();
public synchronized void saveMoney(Student s) {
// TODO Auto-generated method stub
while(total>=2000)
{
try
{
this.wait();
}
catch(InterruptedException e) {
e.printStackTrace();
}
}
s.total=s.total+2*(s.perMonth);
System.out.println(s.name+"存了"+2*s.perMonth+"当前总共拥有"+s.total+"元");
this.notify();//唤醒那些等待着取钱的过程,可以醒过来了。
}
public synchronized void getMoney(Student s)
{
while(total<=0)
{
try
{
this.wait();//让占有this的取钱过程,暂时释放对this的占有,并等待,等待其它线程的调用同步对象的notify方法来唤醒它。
}
catch(InterruptedException e) {
e.printStackTrace();
}
}
s.total=s.total-s.perMonth;
System.out.println(s.name+"取了"+s.perMonth+"当前总共拥有"+s.total+"元");
this.notify();
}
}
线程交互实现
public class RunnableTest {
public static void main(String[] args) {
// TODO Auto-generated method stub
final Object obj=new Object();
final Student s=new Student();
final Student jack=new Student();
s.total=1000;
s.perMonth=200;
s.name="Tom";
System.out.println("Tom最开始拥有"+s.total+"元");
Thread[] save=new Thread[6];
Thread[] get=new Thread[10];
for(int i=0;i<10;i++)
{
Thread t1= new Thread(){
public void run(){
s.getMoney(s);;
//中断1秒钟
try {
Thread.sleep(1000);;
}
catch(InterruptedException e) {
e.printStackTrace();
}
}
};
//启动线程
t1.start();
get[i]=t1;
}
for(int i=0;i<6;i++)
{
Thread t2= new Thread(){
public void run(){
s.saveMoney(s);
try {
Thread.sleep(1000);;
}
catch(InterruptedException e) {
e.printStackTrace();
}
}
};
t2.start();
save[i]=t2;
}
//等待线程结束
for(Thread t:save)
{
try
{
t.join();
}
catch(InterruptedException e)
{
e.printStackTrace();
}
}
//等待线程结束
for(Thread t:get)
{
try
{
t.join();
}
catch(InterruptedException e)
{
e.printStackTrace();
}
}
System.out.println("最后Tom总共拥有"+s.total+"元");
}
}
线程交互最后结果