Java Basics Exercise 20

Import Java.util.Scanner;
public class Twentieth {
/* A company using a public telephone to pass data, the data is a four-bit integer, is encrypted during delivery, encryption rules are as follows: Each digit is added 5, and then divided by the remainder of 10 instead of the number, then the first and fourth exchange, the second and third exchange. */
public static void Main (string[] args) {
Scanner input=new Scanner (system.in);
System.out.println ("Please enter the number to encrypt:");
int A=input.nextint ();
int ge= (a%10+5)%10;
int shi= (a%100/10+5)%10;
int bai= (a%1000/100+5)%10;
int qian= (a/1000+5)%10;
System.out.println ("The number after encryption is:" +ge+ "" +shi+ "" +bai+ "" +qian);

}

}

Java Basics Exercise 20