0919作业-----四大内部类的学习跟练习为主，作业为辅----未做数值合法性检测

//四大内部类的定义区
class Text2{
    //成员内部类定义
    class San{
        private int bian1;
        private int bian2;
        private int bian3;
        San(){
        }
        San(int bian1,int bian2,int bian3){
            this.bian1=bian1;
            this.bian2=bian2;
            this.bian3=bian3;
        }
        public void setBian1(int bian1){
            this.bian1=bian1;
        }
        public void setBian2(int bian2){
            this.bian2=bian2;
        }
        public void setBian3(int bian3){
            this.bian3=bian3;
        }
        public int getBian1(){
            return bian1;
        }
        public int getBian2(){
            return bian2;
        }
        public int getBian3(){
            return bian3;
        }
        public int getZhou(){
            return getBian1()+getBian2()+getBian3();
        }    
    }
    //成员内部类中定义了一个局部内部类
    class People{
        private String name;
        private int age;
        private String sex;
        private int height;
        People(){
            this.name="你猜";
            this.age=10000;
            this.sex="你再猜";
            this.height=-1000;
        }
        People(String name){
            this();
            this.name=name;
        }
        People(String name,int age){
            this(name);
            this.age=age;
        }
        People(String name,int age,String sex){
            this(name,age);
            this.sex=sex;
        }
        People(String name,int age,String sex,int height){
            this(name,age,sex);
            this.height=height;
        }
        public void setName(String name){
            this.name=name;
        }
        public void setAge(int age){
            this.age=age;
        }
        public void setSex(String sex){
            this.sex=sex;
        }
        public void setHeight(int height){
            this.height=height;
        }
        public String getName(){
            return name;
        }
        public int age(){
            return age;
        }
        public String getSex(){
            return sex;
        }
        public int getHeight(){
            return height;
        }
        public void operate(){
            final String str1="嘎嘎，我比较懒，但是我确实会算术，因为我会调用，会重载~~~";
            final String str2="很会说话~~~";
            final String str3="小子，你发现了没有，我的名字已经改成了";
            class Inner{
                public void hello(){
                    System.out.println(People.this.getName()+str2);
                }
                public void operate(){
                    System.out.println(str1);
                }
                public void setName(){
                    System.out.println(str3+People.this.getName());
                }
            }
            Inner inner=new Inner();
            inner.hello();
            inner.operate();
            inner.setName();
        }
    }
    //静态内部类的定义
    static class Point{
        private int x;
        private int y;
        Point(){
            x=-1;
            y=-1;
        }
        Point(int x){
            this();
            this.x=x;
        }
        Point(int x,int y){
            this(x);
            this.y=y;
        }
        public void setX(int x){
            this.x=x;
        }
        public void setY(int y){
            this.y=y;
        }
        public int getX(){
            return x;
        }
        public int getY(){
            return y;
        }
    }
    //一个抽象类的定义，用于客户端匿名内部类来实现抽象方法
    abstract class ChongZai{
        public void printl(){
            System.out.println("这里是重载练习区");
        }
        public abstract void print();
        public abstract void print(String a);
        public abstract void print(String a,String b);
    }
    
}
class Text1{
    public static void main(String[] args){
        System.out.println("题目一：");
        Text2 t2=new Text2();
        Text2.San san=t2.new San(10,10,10);
        System.out.println("三角形周长为："+san.getZhou());
        System.out.println("题目二：");
        Text2.People peo=t2.new People("张三",18,"男",180);
        System.out.println("我的名字叫："+peo.getName());
        peo.setName("李四");        
        peo.operate();
        System.out.println("题目三：");
        System.out.println("点的坐标是："+new Text2.Point(3,10).getX()+" "+new Text2.Point(3,10).getY());
        System.out.println("题目四：");
        Text2.ChongZai c=t2.new ChongZai(){
            public void print(){
                System.out.println("内部类好麻烦~~");
            }
            public void print(String a){
                System.out.println(a);
            }
            public void print(String a,String b){
                System.out.println(a);
                System.out.println(b);
            }
        };
        c.printl();
        c.print();
        c.print("内部类一是成员内部类，二是局部内部类");
        c.print("内部类三是静态内部类，它就像静态成员一样使用","内部类四就是我，我叫做匿名内部类");
    }
}