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Java Programs›Basics & I/O›Subtract Two Numbers

Subtract Two Numbers in Java

beginner· Basics & I/O · Arithmetic

Problem

Subtracting two numbers with the - operator finds the difference between them.

Given two integers, subtract the second from the first and print the result.

Input

10, 4

Output

Difference: 6

Java Program

Java

public class SubtractTwoNumbers {
    public static void main(String[] args) {
        int a = 10;
        int b = 4;
        int difference = a - b; // order matters here
        System.out.println("Difference: " + difference);
    }
}

Output

Difference: 6

Core Logic

The - operator subtracts the second value from the first, evaluated left to right just like standard arithmetic.

How It Works

1a holds 10 and b holds 4.
2a - b evaluates to 6, the result of subtracting b from a.
3The result is stored in difference and printed alongside a label.

With a = 10 and b = 4, a - b evaluates to 6, so the program prints "Difference: 6".

💡

Key Point: Order matters with subtraction — a - b and b - a give different (often negatively signed) results, unlike addition or multiplication.

Key Concepts

- operatorintarithmetic

Sum of Two Numbers

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