【每日日报】第六天

1 今天写了学生类的程序

 

  题目要求：

 

 程序源代码：

package Student;

import java.util.Scanner;

public class Student {
 public static void main(String[] args){
  char[] s1 = {'2','0','1','9','0','3','2','7'};
  char[] s2 = {'d','o','u','b','l','e','b','e','s','t'};
     Student stu1 = new Student(s1,s2);
     stu1.setAge(21);
     stu1.show();
     Student stu2 = new Student(stu1);
    
     Scanner input = new Scanner(System.in);
     String s = input.nextLine();
     s1 = s.toCharArray();
    
     s = input.nextLine();
        s2 = s.toCharArray();
       
     stu2.setNo(s1);
     stu2.setName(s2);
     stu2.show();
     input.close();
 }
 static int sum = 0;
   Student(char[] NO,char[] NAME){
     int i=0;
     no = NO;
     name = NAME;
     sum++;
     System.out.println("Constructor run");
     System.out.println("NumTotal:"+sum);
    }
    Student(char[] NO,char[] NAME,int AGE){
        no = NO;
        name = NAME;
        age = AGE;
     sum++;
     System.out.println("Constructor run");
     System.out.println("NumTotal:"+sum);
    }
    Student(Student S){
     no = S.no;
        name =S.name;
      age = S.age;
      sum++;
      System.out.println("CopyConstructor run");
      System.out.println("NumTotal:"+sum);
    }
    void setNo(char[] NO){no = NO;}
    char[] getNo(){return no;}
    void setName(char[] NAME){name = NAME;}
    char[] getName(){return name;}
    void setAge(int AGE){age = AGE;}
    int getAge(){return age;}
    void show(){
     System.out.print("No:");
     System.out.print(getNo());
     System.out.print(",Name:");
     System.out.print(getName());
     System.out.println(",Age:"+age);
    }
    char[] no;
    char[] name;
    int age;
}

 

 运行截图：

 

 

 2 今天知道了在java语言中没有指针的定义，但是在传参的时候可以传数组

3 明天继续写题