You want to write a Java program that sums two numbers given as command line arguments. Which code snippet correctly converts the arguments and prints the sum?

hard📝 Application Q15 of 15

Java - Command Line Arguments

public class Sum {
    public static void main(String[] args) {
        // Fill in the blanks
    }
}

Aint a = Integer.valueOf(args); int b = Integer.valueOf(args); System.out.println(a + b);

Bint a = args[0]; int b = args[1]; System.out.println(a + b);

CString a = args[0]; String b = args[1]; System.out.println(a + b);

Dint a = Integer.parseInt(args[0]); int b = Integer.parseInt(args[1]); System.out.println(a + b);

Step-by-Step Solution

Solution:

Step 1: Convert command line arguments from String to int
Use Integer.parseInt(args[0]) and Integer.parseInt(args[1]) to convert the first two arguments to integers.
Step 2: Add the integers and print the result
Sum the two integers and print the result using System.out.println(a + b).
Final Answer:
int a = Integer.parseInt(args[0]); int b = Integer.parseInt(args[1]); System.out.println(a + b); -> Option D
Quick Check:
Convert args to int then add [OK]

Quick Trick: Use Integer.parseInt to convert args before math [OK]

Common Mistakes:

Trying to add strings directly without conversion
Using args as int without parsing
Using Integer.valueOf with wrong parameter

Master "Command Line Arguments" in Java

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Time

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions

More Java Quizzes

You want to write a Java program that sums two numbers given as command line arguments. Which code snippet correctly converts the arguments and prints the sum?

Step 1: Convert command line arguments from String to int

Step 2: Add the integers and print the result

Final Answer:

Quick Check:

Want More Practice?