java程序设计基础_陈国君版第五版_第十一章例题

class MyThread extends Thread
{
private String who;
public MyThread(String who)
{
this.who = who;
}
public void run()
{
for(int i =0 ; i<5; i++)
{
try
{
sleep((int)(1000*Math.random()));
}
catch(InterruptedException e)
{}
System.out.println(who+"正在运行！！");
}
}
}
public class Main11_1 {
public static void main(String[] args){
MyThread you = new MyThread("你");
MyThread she = new MyThread("她");
you.start();
she.start();
System.out.println("主方法main（）运行结束！");
}
}

class MyThread2 implements Runnable
{
private String who;
public MyThread2(String who)
{
this.who = who;
}
public void run()
{
for(int i =0 ;i<5;i++)
{
try
{
Thread.sleep((int)(1000*Math.random()));
}
catch(InterruptedException e)
{
System.out.println(e.toString());
}
System.out.println(who+"正在运行！！");
}
}
}
public class Main11_2 {
public static void main(String[] args)
{
MyThread you = new MyThread("你");
MyThread she = new MyThread("她");
Thread t1 = new Thread(you);
Thread t2 = new Thread(she);
t1.start();
t2.start();
}
}

class MyThread3 extends Thread
{
private String who;
public MyThread3(String who)
{
this.who = who;
}
public void run()
{
for(int i =0 ; i<5; i++)
{
try
{
sleep((int)(1000*Math.random()));
}
catch(InterruptedException e)
{}
System.out.println(who+"正在运行！！");
}
}
}
public class Main11_3 {
public static void main(String[] args)
{
MyThread3 you = new MyThread3("你");
MyThread3 she = new MyThread3("她");
you.start();
try {
you.join();
} catch (InterruptedException e) {
e.printStackTrace();
}
she.start();
try {
she.join();
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("主方法main()运行结束！！");
}
}

class ThreadSale extends Thread
{
private int tickets = 10;
public void run()
{
while(true)
{
if(tickets>0)
System.out.println(getName()+"   售机票第"+tickets--+"号");
else
System.exit(0);
}
}
}
public class Main11_4 {
public static void main(String[] args)
{
ThreadSale t1 = new ThreadSale();
ThreadSale t2 = new ThreadSale();
ThreadSale t3 = new ThreadSale();
t1.start();
t2.start();
t3.start();
}
}

class ThreadSale5 implements Runnable
{
private int tickets = 10;
public void run()
{
while(true)
{
if(tickets>0)
System.out.println(Thread.currentThread().getName()+"售机票第"+tickets--+"号");
else
System.exit(0);
}
}
}
public class Main11_5 {
public static void main(String[] args){
ThreadSale5 t = new ThreadSale5();
Thread t1 = new Thread(t,"第1售票窗口");
Thread t2 = new Thread(t,"第2售票窗口");
Thread t3 = new Thread(t,"第3售票窗口");
t1.start();
t2.start();
t3.start();
}
}

class Mbank
{
private static int sum = 2000;
public static void take(int k)
{
int temp = sum;
temp -= k;
try
{
Thread.sleep((int)(1000*Math.random()));
}
catch(InterruptedException e)
{}
sum =temp;
System.out.println("sum ="+sum);
}
}
class Customer extends Thread
{
public void run()
{
for(int i = 1;i<=4;i++)
Mbank.take(100);
}
}
public class Main11_6 {
public static void main(String[] args){
Customer c1 = new Customer();
Customer c2 = new Customer();
c1.start();
c2.start();
}
}

class Mbank7
{
private static int sum = 2000;
public synchronized static void take(int k)
{
int temp = sum;
temp -= k;
try
{
Thread.sleep((int)(1000*Math.random()));
}
catch(InterruptedException e)
{}
sum =temp;
System.out.println("sum ="+sum);
}
}
class Customer7 extends Thread
{
public void run()
{
for(int i = 1;i<=4;i++)
Mbank7.take(100);
}
}
public class Main11_7 {
public static void main(String[] args){
Customer7 c1 = new Customer7();
Customer7 c2 = new Customer7();
c1.start();
c2.start();
}
}

public class Main11_8 {
public static void main(String[] args){
Tickets t = new Tickets(10);
new Producer(t).start();
new Consumer(t).start();
}
}
class Tickets
{
protected int size;
int number = 0 ;
boolean available = false;
public Tickets(int size)
{
this.size = size;
}
public synchronized void put()
{
if(available)
try{wait();}
catch(Exception e){}
System.out.println("存入第【"+(++number)+"】号票");
available = true;
notify();
}
public synchronized void sell()
{
if(!available)
try{wait();}
catch(Exception e){}
System.out.println("售出第【"+(number)+"】号票");
available = false;
notify();
if(number == size)  number =size+1;
}
}
class Producer extends Thread
{
Tickets t = null;
public Producer(Tickets t)
{
this.t = t;
}
public void run()
{
while(t.number < t.size)
t.put();
}
}
class Consumer extends Thread
{
Tickets t = null;
public Consumer(Tickets t)
{
this.t = t;
}
public void run()
{
while(t.number <= t.size)
t.sell();
}
}