出现严重的死锁，其次内部类创建对象的问题

1.死锁

package com.java.learnling.test;

public class TestPage221 {

volatile static int test1 = 0;

public static void main(String[] args) {
	// TODO Auto-generated method stub
	
	TestPage221 page221 = new TestPage221();
	
	
    Thread  t1 = page221.new TestThread("test1");
	
	TestThread  t2 = page221.new TestThread("Test2");
	
	
	t1.start();
    t2.start();
}

class TestThread extends Thread{
	public TestThread(String n){
		super(n);
	}
}
public void run (){
synchronized (TestPage221.class) {
	for (int i = 0;i<100000;i++){
		int oderNumber = TestPage221.test1;
		System.out.println(oderNumber);
	    TestPage221.test1++;
	    int newNumber = TestPage221.test1;
	    System.out.println(newNumber);
	    if(newNumber != oderNumber){
	    	
	    	System.out.println("found");
	    }
	    
	}
}
}
}

2.没有new一个 TestPage221的类对象是不能够直接对类中的内部类进行创建对象
必须先创建外部类的对象再对内部类.调用，来new 一个对象（TestThread()）;
Multiple markers at this line
- No enclosing instance of type TestPage221 is accessible. Must
qualify the allocation with an enclosing instance of type TestPage221 (e.g.
x.new A() where x is an instance of TestPage221).
- The value of the local variable t1 is not used