Question

Write a java program to store mobile number in a variable and print the last 4 digits

Answer 1

Answer:

This is the required Java program for the question.

import java.util.*;

public class MobileNumber {

public static void main(String[] args) {

int m;

Scanner sc=new Scanner(System.in);

System.out.print("Enter your mobile number: ");

m=sc.nextInt();

if((m+"").length()==10 || (m+"").length()==12)

System.out.println("Last 4 digits: "+m%10000);

else

System.out.println("Not a valid number.");

sc.close();

}

}

Explanation:

• Here, the concept of operators is used. We are asked to enter a valid pho.ne number and display the last 4 digits. To do this, we will simply divide the number by 10000 and get the remainder. To obtain the remainder, we will use % (modulus) operator. After calculating the last 4 digits, we will display it.

See the attachment for output ☑.