Java Program to Break Integer into Digits

Last Updated: 09 July, 2022

On this tutorial page we are going to learn how to write a Java program to break an integer into digits. For example, if the input number is 508321 then the program will break the number and display each digit, such as 5, 0, 8, 3, 2, 1 along with their position in the output.

Let's the examples given below.

Example 1: A Java Program to Break an Integer into Digits

  
  import java.util.Scanner;
  public class BreakIntegerExample1 {
    public static void main(String args[]) {
      int num, temp, digit, count = 0;
      
      Scanner scanner = new Scanner(System.in);
      System.out.print("Enter any number: ");
      num = scanner.nextInt();
      scanner.close();
      
      temp = num;
      while (num > 0) {
        // dividing the number by 10
        num = num / 10;
        count++;
      }
      
      while (temp > 0) {
        // finding the remainder
        digit = temp % 10;
        System.out.println("Digit at the place " + count + " is: " + digit);
        temp = temp / 10;
        // decrements the digit by 1
        count--;
      }
    }
  }

Output

Enter any number: 2876313
Digit at the place 7 is: 3
Digit at the place 6 is: 1
Digit at the place 5 is: 3
Digit at the place 4 is: 6
Digit at the place 3 is: 7
Digit at the place 2 is: 8
Digit at the place 1 is: 2

Let's see another program. In the program breaking the number into digits and storing each digit in the array.

Example 2: Break the number into digits and store each digit in an array

  public class BreakIntegerExample2 {
    public static void main(String[] args) {
      int number = 24680;
      int[] numArr = new int[5];
      int i = 0;
  
      while (number > 0) {
  
        // Find the remainder (last digit)
        int remainder = number % 10;
  
        // storing the remainder (last digit) into the array
        numArr[i] = remainder;
        i++;
  
        // Removing the last digit from the number
        number = number / 10;
      }
      
      // Printing array values
      for(int j=numArr.length-1; j>=0; j--) {
        System.out.println(numArr[j]);
      }
    }
  }

Output

2
4
6
8
0