java多線程，java線程

java多線程，java線程

線程的同步和死結：

public class Child {    public void say(){        System.out.println("給我玩具，我就給你成績單！");    }        public void get(){        System.out.println("孩子得到玩具！");    }}

public class Father {    public void say(){        System.out.println("給我成績單，我就給你玩具！");    }        public void get(){        System.out.println("父親得到成績單！");    }}

public class DeadTreadDemo implements Runnable {    private static Father father = new Father();    private static Child child = new Child();        boolean flag = false;        public void run(){        if(flag){            synchronized(father){                father.say();                try{                    Thread.sleep(500);                } catch(Exception e){                    e.printStackTrace();                }                synchronized(child){                    father.get();                }            }        } else {            synchronized(child){                child.say();                try{                    Thread.sleep(500);                } catch(Exception e){                    e.printStackTrace();                }                synchronized(father){                    child.get();                }            }        }    }}

public class TestDt {    public static void main(String[] args) {        DeadTreadDemo dd1 = new DeadTreadDemo();        DeadTreadDemo dd2 = new DeadTreadDemo();                dd1.flag = true;        dd2.flag = false;                new Thread(dd1).start();        new Thread(dd2).start();            }}

精靈線程：

public class RunnableDemo implements Runnable{    private String name;    private int ticket = 5;    public RunnableDemo(String name){        this.name = name;    }    // 精靈線程    public void run(){        for(int i=1;i<=5;i++){            synchronized(this){                if(ticket>0){                    try{                        Thread.sleep(1000);                    } catch(Exception e){                        e.printStackTrace();                    }                    System.out.println(Thread.currentThread().getName() + "賣票：" + ticket--);                }            }            //System.out.println(Thread.currentThread().getName() + "運行了：" + i);        }    }        public static void main(String[] args) {        RunnableDemo rd1 = new RunnableDemo("aaa");        new Thread(rd1).start();        new Thread(rd1).start();    }}