java语言编程题，题目如下

package test;

public class Father {

	private String name;
	
	class Child{
		public void introFather(){
			System.out.println(name);
		}
	}
	
	public Child newChild(){
		return new Child();
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}
}

package test;

import test.Father.Child;

public class Test {

	public static void main(String[] args) {
		Father father= new Father();
		father.setName("zhangjun0");
		Child child=father.newChild();
		child.introFather();
	}

}

public class Father {
private String name="zhangjun0";

class Child {
public void introFather(){
System.out.println(name);
}
}
}
---------------------------------
public class Test {
public static void main(String[] args) {
Father.Child child=new Father().new Child();
child.introFather();
}
}