Java内部类，扫盲贴

class Outer
{
    int score = 95;
    
    void inst()
    {
        Inner in = new Inner();
        in.display();
    }
    
    class Inner
    {
        void display()
        {
            System.out.println("成绩：score = "+score);
        }
    }
}

public class InnerClassDemo
{
    public static void main(String args[])
    {
        Outer outer = new Outer();
        outer.score = 100;
        outer.inst();
        
        //在类外部使用内部类
        Outer.Inner inner = outer.new Inner();
        inner.display();
    }
}