线程的等待和唤醒代码运行不了求助

[XyGeL]

public class producter implements Runnable {
	private Info info;

	public producter(Info info) {
		super();
		this.info = info;
	}
	@Override
	public void run() {
		boolean flag = false;
		for (int i = 0; i < 50; i++) {
			if (flag) {
				try {
					Thread.sleep(100);
				} catch (InterruptedException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				this.info.setNameCntent("小A", "JAVA学员");
				
				flag = false;
			} else {
				try {
					Thread.sleep(100);
				} catch (InterruptedException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				this.info.setNameCntent("mol", "www.baidu.com");
				flag = true;
			}

		}

	}
}

上面是生产类

public class Consumer implements Runnable {
	private Info info;

	public Consumer(Info info) {
		super();
		this.info = info;
	}

	@Override
	public void run() {
		for (int i = 0; i < 50; i++) {
			try {
				Thread.sleep(100);
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			this.info.getNameContent();

		}
	}
}

上面是用户类

public class Info {
	private String name = "小A";// 保存信息用
	private String content = "JAVA学员";// 保存信息用
	private boolean flag = false;

	public synchronized void setNameCntent(String name, String Content) {
		if (!flag) {
			try {
				super.wait();//  等待消耗者消耗
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			this.name = name;
			
			this.content = Content;
			flag = false;// 生产完了修改标识
			super.notify();
		}
	}

	public synchronized void getNameContent() {
		if (flag) {
			try {
				super.wait();// 等待生产者生产
				
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			try {
				Thread.sleep(100);
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			System.out.println(this.name + "---" + this.content);
			flag = true;
			super.notify();
		}
	}
}

上面是基本类

public class Demo {
  public static void main(String[] args) {
	  Info i = new Info();
	  producter p  = new producter(i);
	  Consumer c = new Consumer(i);
	  Thread t = new Thread(p);
	  Thread t2 = new Thread(c);
	 
	  t.start();
	  t2.start();
	
}
}

最后是测试类

不管怎么运行就是运行不起走，求大神告知怎么回事啊，上面代码可以直接复制到eclipse上测试，思考改码都快2小时了，简直头大

[游一游走一走]

如果我先执行这个代码，请问如何唤醒

    public synchronized void setNameCntent(String name, String Content) {
        if (!flag) {
            try {
                super.wait();//  等待消耗者消耗
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            this.name = name;
             
            this.content = Content;
            flag = false;// 生产完了修改标识
            super.notify();
        }
    }

[XyGeL]

是啊，我今天才发现，如果先执行这段，就直接卡主了，所以该怎么去修改呢

[爱睡觉的阿狸]

把Info类这样改下就没问题了：

public class Info {
    private String name = "小A";// 保存信息用
    private String content = "JAVA学员";// 保存信息用
    private boolean flag = false;
 
    public synchronized void setNameCntent(String name, String Content) {
        if (!flag) {
        	flag = true;// 生产完了修改标识
            try {
                super.wait();//  等待消耗者消耗
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            this.name = name;
            this.content = Content;
            super.notify();
        }
    }
 
    public synchronized void getNameContent() {
        if (flag) {
        	flag = false;
            super.notifyAll();;// 等待生产者生产
            try {
                Thread.sleep(100);
                System.out.println(this.name + "---" + this.content);
                super.wait();
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }
}

[soton_dolphin]

info 类

public class Info {
    private String name = "小A";// 保存信息用
    private String content = "JAVA学员";// 保存信息用
    private boolean flag = false;
 
    public synchronized void setNameCntent(String name, String Content) {
        while (flag) {
            try {
                wait();//  等待消耗者消耗
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        
        this.name = name;
        
        this.content = Content;
    	flag = true;
        notifyAll();
    }
 
    public synchronized void getNameContent() {
        while(!flag) {
            try {
                wait();// 等待生产者生产
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
        

        System.out.println(this.name + "---" + this.content);
        flag = false;// 生产完了修改标识
        notifyAll();
    }
}

Producer

public class Producer implements Runnable {
    private Info info;
 
    public Producer(Info info) {
        this.info = info;
    }
    @Override
    public void run() {
        for (int i = 0; i < 50; i++) {
            info.setNameCntent("小A", "JAVA学员");
        }
    }
}

Consumer

public class Consumer implements Runnable {
    private Info info;
 
    public Consumer(Info info) {
        super();
        this.info = info;
    }
 
    @Override
    public void run() {
        for (int i = 0; i < 50; i++) {
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            info.getNameContent();
        }
    }
}