大数据Java基础第八天作业

标签：java   多线程   thread   

第一题：
class Car extends Thread{
    private String name;
    private Locked lock;
    public Car(String name,Locked lock){
        this.name = name;
        this.lock = lock;
    }

    public void run(){
        synchronized(lock){
            System.out.println("车号：" + name + "，开始进入隧道...");
            for(int i=1;i<=10;i++){
                try{
                    System.out.println("进入隧道第" + i + "秒");
                    Thread.sleep(1000*1);    
                }catch(Exception e){};
            }
            System.out.println("车号："+ name + "，结束进入隧道...");
        }
    }
}

class Locked{
    //空锁...
}

class CarDemo{
    public static void main(String[] args){
        Locked lock = new Locked();

        Car car001 = new Car("car001",lock);
        Car car002 = new Car("car002",lock);
        Car car003 = new Car("car003",lock);
        Car car004 = new Car("car004",lock);
        Car car005 = new Car("car005",lock);
    
        car001.start();
        car002.start();
        car003.start();
        car004.start();
        car005.start();
    }
}
第二题：
import java.util.ArrayList;
import java.util.List;

class Bee extends Thread{
    private String name;
    private List<Integer> list;
    private int i = 1;
    public Bee(String name,List<Integer> list){
        this.name = name;
        this.list = list;
    }
    public void run(){
        while(true){
            synchronized(list){                
                if(list.size() >= 10){
                    try{
                        list.wait();
                    }catch(Exception e){};
                }else{
                    try{
                        Thread.sleep(1000);
                    }catch(Exception e){};
                    System.out.println("蜜蜂号：" + name + "，生产第" + i + "次蜂蜜！");
                    list.add(new Integer(i));
                    i ++;
                    list.notify();
                    
                }
            }
        }        
    }
}

class Bear extends Thread{
    private String name;
    private List<Integer> list;
    private int total = 1;
    private Locked lock;
    public Bear(String name,List<Integer> list){
        this.name = name;
        this.list = list;
    }
    public void run(){
        while(true){
            synchronized(list){
                if(list.size() >= 10){
                    System.out.println("熊消费：" + total + "次！");
                    total ++;
                    list.removeAll(list);
                    try{
                        Thread.sleep(2000);
                    }catch(Exception e){};
                    list.notify();
                }else{
                    try{
                        list.wait();
                    }catch(Exception e){
                        e.printStackTrace();
                    }
                }
            }
        }
    }
}

class ProductDemo{
    public static void main(String[] args){
        List<Integer> list = new ArrayList<Integer>();

        Bee bee001 = new Bee("001",list);
        Bee bee002 = new Bee("002",list);
        Bee bee003 = new Bee("003",list);
        bee001.start();
        bee002.start();
        bee003.start();

        Bear bear = new Bear("001",list);
        bear.start();
    }
}

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大数据Java基础第八天作业

标签：java   多线程   thread   

原文地址：http://senlinmin.blog.51cto.com/6400386/1773149