Description

In this program, program will take two number as input and give subtraction of the two
number as output. The first input stored in variable firstNumber and second input 
stored in variable secondNumber. The variables firstNumber and secondNumber are 
subtracted using the arithmetic operator - and the result is stored in the variable sub.
example : firstNumber = 15
          secondNumber = 10
          sub = 5

C/C++

/* C Program to subtract two numbers */
//Save it as SubtractTwoNumbers.c

#include<stdio.h>
int main(){

    int firstNumber, secondNumber, sub;

    printf("Enter the first number : ");
    scanf("%d",&firstNumber);

    printf("Enter the second number : ");
    scanf("%d",&secondNumber);

    sub = firstNumber - secondNumber;

    printf("The subtraction of %d and %d is %d",firstNumber,secondNumber,sub);

    return 0;
}

Input:
Enter the first number : 
12
Enter the second number : 
3

Output:
The subtraction of 12 and 3 is 9

Java

/* Java Program to subtract two numbers */
//Save it as SubtractTwoNumbers.java

import java.io.*;
import java.util.Scanner;

public class SubtractTwoNumbers {

    public static void main(String[] args) {

            Scanner scanner = new Scanner(System.in);
        
            int firstNumber, secondNumber, sub;

        System.out.println("Enter the first number : ");
        firstNumber = scanner.nextInt();

        System.out.println("Enter the second number : ");
        secondNumber = scanner.nextInt();

        sub = firstNumber - secondNumber;

        System.out.println("The subtraction of "+firstNumber+" and "+secondNumber+" is "+ sub);
    }
}

Input:
Enter the first number : 
15
Enter the second number : 
2

Output:
The subtraction of 15 and 2 is 13