Java基础多线程间通讯同步操作示例一(未优化)：

class ThreadCommunicationDemo
{
    public static void main(String[] args)
    {
        Resource resource = new Resource();
        
        Input input = new Input(resource);
        Output output = new Output(resource);
        
        new Thread(input,"input thread").start();
        new Thread(output,"output thread").start();        
    }
}

class Input implements Runnable
{
    private Resource  resource;
    private boolean flag;
    public Input(Resource resource)
    {
        this.resource = resource;
    }
    
    public void run()
    {
        while(true)
        {
            synchronized(resource)
            {
                try
                {
                    if(resource.getFlag())
                        resource.wait();
                    if(flag)
                    {
                        resource.setName("zhangsan");
                        resource.setSex("nan");
                    }
                    else
                    {
                        resource.setName("lishi");
                        resource.setSex("nv");
                    }
                    resource.setFlag(true);
                    resource.notify();
                    
                }
                catch(Exception e)
                {
                    System.err.println(e.getMessage());
                }
            }
            
            flag=!flag;
        }
    }
    
}

class Output implements Runnable
{
    private Resource resource;
    
    public Output(Resource resource)
    {
        this.resource = resource;
    }
    
    public void run()
    {        
        while(true)
        {
            synchronized(resource)
            {
                try
                {
                    if(!resource.getFlag())
                        resource.wait();
                        
                    System.out.println(resource.getName() + " ... "+resource.getSex());
                    resource.setFlag(false);
                    resource.notify();
                }
                catch(Exception e)
                {
                    System.err.println(e.getMessage());
                }
            }
        }
    }
    
}

class Resource
{
    private String Name;
    private String Sex;
    private boolean Flag;
    
    public String getName()
    {
        return this.Name;
    }
    
    public void setName(String Name)
    {
        this.Name = Name;
    }
    
    public String getSex()
    {
        return this.Sex;
    }
    
    public void setSex(String Sex)
    {
        this.Sex = Sex;
    }
    
    public Boolean getFlag()
    {
        return this.Flag;
    }
    
    public void setFlag(boolean Flag)
    {
        this.Flag = Flag;
    }
}