[Solved] What will be the output of the following Java program if run with command line arguments: java Program Hello World? public class Program { public static void main(String[] args) { System.out.... | Java

Java - Command Line Arguments

What will be the output of the following Java program if run with command line arguments: java Program Hello World?

public class Program {
    public static void main(String[] args) {
        System.out.println(args.length);
        System.out.println(args[0]);
        System.out.println(args[1]);
    }
}

A2 Hello World

B3 Hello World

C2 World Hello

D3 World Hello

Step-by-Step Solution

Solution:

Step 1: Count command line arguments
Arguments are "Hello" and "World", so args.length is 2.
Step 2: Check printed values
args[0] is "Hello", args[1] is "World". So output lines are 2, Hello, World.
Final Answer:
2 Hello World -> Option A
Quick Check:
args.length=2, args[0]=Hello, args[1]=World [OK]

Quick Trick: args.length counts arguments; args[0] is first argument [OK]

Common Mistakes:

Counting program name as argument
Swapping args[0] and args[1]
Assuming args.length includes program name

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More Java Quizzes

What will be the output of the following Java program if run with command line arguments: java Program Hello World?

Step 1: Count command line arguments

Step 2: Check printed values

Final Answer:

Quick Check:

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