2020.8.30第五十五天

例11.1

import java.util.Scanner;
import java.util.*;
public class cjava {
public static void main(String[]args) {
Student1 s1=new Student1();
s1.get_value();
s1.get_value1();
s1.display();
s1.display_1();
    }
}
class Student{
    private int num;
    private String name;
    protected char sex;
    public void get_value() {
        Scanner s=new Scanner(System.in);
        num=s.nextInt();
        String s2;
        s2=s.next();
        sex=s2.charAt(0);
        Scanner s3=new Scanner(System.in);
        name=s.nextLine();         
    }
    public void display() {
        System.out.println("num:"+num);
        System.out.println("name:"+name);
        System.out.println("sex:"+sex);
    }
}
class Student1 extends Student{
    private int age;
    private String addr;
    public void display_1() {
        System.out.println("age:"+age);
        System.out.println("address:"+addr);
    }
    public void get_value1() {
        Scanner g=new Scanner(System.in);
        age=g.nextInt();
        addr=g.next();    
    }
    
}

 2.遇到的问题：char和string的转换

3.明天继续写例题