java------线程通信实例

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这里写图片描述

package lyfpractice.src.com.comunication;/** * Created by fangjiejie on 2016/12/21. */public class Account {    String name;    double money;    public Account(String name, double money) {        this.name = name;        this.money = money;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public double getMoney() {        return money;    }    public void setMoney(double money) {        this.money = money;    }    boolean flag=false;//可存不可取,true可取不可存    void savemoney(double money){//存钱        synchronized (this){            if(flag==true){                try {                    System.out.print(Thread.currentThread().getName());                    System.out.println("现在不能存！");                    wait();                } catch (InterruptedException e) {                    e.printStackTrace();                }            }else{                System.out.print(Thread.currentThread().getName());                    this.setMoney(this.getMoney() + money);                    System.out.println("已经存"+money+"元");                }            flag=true;            notifyAll();            }        }    void takemoney(double money){//取钱        synchronized (this){            if(flag==false){                try {                    System.out.print(Thread.currentThread().getName());                    System.out.println("现在不能取！");                    wait();                } catch (InterruptedException e) {                    e.printStackTrace();                }            }else{                if(this.getMoney()<money){                    System.out.print(Thread.currentThread().getName());                    System.out.println("余额不足！");                }                else {                    System.out.print(Thread.currentThread().getName());                    System.out.println("已经取到"+money+"元");                    this.setMoney(this.getMoney() - money);                }            }            flag=false;            notifyAll();        }    }}

package lyfpractice.src.com.comunication;/** * Created by fangjiejie on 2016/12/21. */public class Save extends Thread{    String people;    Account account;    double m;    public Save(String people,double m, Account account) {        this.people = people;        this.m=m;        this.account = account;    }    @Override    public void run() {        account.savemoney(m);    }}

package lyfpractice.src.com.comunication;/** * Created by fangjiejie on 2016/12/21. */public class Take extends Thread{    String people;    Account account;    double m;    public Take(String people,double m, Account account) {        this.people = people;        this.m=m;        this.account = account;    }    @Override    public void run() {        account.takemoney(m);    }}

package lyfpractice.src.com.comunication;/** * Created by fangjiejie on 2016/12/21. */public class test {    public static void main(String[] args) {        Account l=new Account("lyf",0);        new Save("mm",100,l).start();        Save a=new Save("dd",100,l);        a.start();        new Save("gg",100,l).start();        new Take("dd",100,l).start();        new Save("gg",100,l).start();    }}

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