Java: Compute the digit number of sum of two given integers

Last update on May 13 2025 13:00:13 (UTC/GMT +8 hours)

Digit Count of Sum of Two Integers

Write a Java program to compute the digit number of the sum of two given integers.

Input:

Each test case consists of two non-negative integers a and b which are separated by a space in a line. 0 ≤ a, b ≤ 1,000,000

Visual Presentation:

Sample Solution:

Java Code:

import java.util.*;

public class Main {
    public static void main(String[] args) {
        // Prompting the user to input two integers (a and b)
        System.out.println("Input two integers(a b):");

        // Creating a Scanner object for user input
        Scanner stdIn = new Scanner(System.in);

        // Reading the values of integers a and b from user input
        int a = stdIn.nextInt();
        int b = stdIn.nextInt();

        // Calculating the sum of integers a and b
        int sum = a + b;

        // Initializing a variable to count the number of digits in the sum
        int count = 0;

        // Counting the number of digits in the sum using a while loop
        while (sum != 0) {
            sum /= 10;
            ++count;
        }

        // Displaying the digit number of the sum of the two integers
        System.out.println("Digit number of sum of said two integers:");
        System.out.println(count);
    }
} 

Sample Output:

Input two integers(a b):
 13 25
Digit number of sum of said two integers:
2

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Java program to compute the digit count of the product of two given integers.
• Write a Java program to determine the digit count of the difference between two large integers.
• Write a Java program to calculate the digit count of the sum of three given integers.
• Write a Java program to find the digit count of the concatenation of two integer sums.

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