内部类

public class Outer {
private int id=10;
public void out(){
System.out.println("这是外部类的方法");
}
public class Inner{
public void in(){
System.out.println("这是内部类的方法");
}
//获得外部类的私有属性
public void getId(){
System.out.println(id);
}
}
}
System.out.println("00000000000000000000000000000000000000000000000000000000000000000000000000000000");
public class Application {
public static void main(String[] args) {
Outer outer=new Outer();
//通过这个外部类来实例化内部类
Outer.Inner inner=outer.new Inner();
inner.in();
inner.getId();
}
}
System.out.println("000000000000000000000000000000000000000000000000000000000000000000000000000000000");
运行结果：
这是内部类的方法
10
System.out.println("000000000000000000000000000000000000000000000000000000000000000000000000000000000");