Find the Sum of Two numbers Using Command Line Arguments in Java

The following code shows how to Find the Sum of Two numbers Using Command Line Arguments in Java.

Since the command line arguments in java are accepted as strings in a string array, we need to convert them into integers. For this purpose, we can use the parseInt() method of the wrapper class Integer before computing the sum.

public class Exercise3
{
	public static void main(String[] args) {
		int a, b;
		if(args.length!=2)
		{
			System.out.println("Wrong Number of Command Line Arguments!\nExiting...");
			System.exit(0);
		}
		a=Integer.parseInt(args[0]);
		b=Integer.parseInt(args[1]);		
		System.out.println("Sum of "+a+" and "+b+" is "+(a+b));
	}
}

Output

**A Program to Find the Sum of Two numbers Using Command Line Arguments in Java**

Further Reading