JAVA回调机制解析

public class StudentA implements CallBack{
	private StudentB mStuB;
	
	public StudentA(StudentB mStuB){
		this.mStuB = mStuB;
	}
	
	public void askQuestion(final int a,final int b){
		new Thread(new Runnable(){

			@Override
			public void run() {
				// TODO Auto-generated method stub
				mStuB.executeMessage(StudentA.this, a, b);
			}
			
		}).start();
	}

	@Override
	public void solve(int result) {
		// TODO Auto-generated method stub
		System.out.println(result);
	}
}

public class StudentB {
	
	public void executeMessage(CallBack callBack,int a,int b){
		System.out.println("A的问题是："+a +" + "+ b+"=?");
		
		int result = a + b;
		
		callBack.solve(result);
	}
	
}

public class CallBackTest {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		int a = 1;
		int b = 1;
		
		StudentB mStuB = new StudentB();
		StudentA mStuA = new StudentA(mStuB);

		mStuA.askQuestion(a,b);
	}
}