Command Line Arguments in Java are values passed to the main() method during program execution via the terminal or command prompt. They are stored in a String[] args array and allow dynamic input without modifying the code.
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What is the index of the first command line argument?
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Question 3 of 15
3. Question
What is printed when the program is executed as java Main Hello World?
public class Main { public static void main(String[] args) { System.out.println(args.length); } }
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Question 4 of 15
4. Question
How to convert `args[0]` to an integer?
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Question 5 of 15
5. Question
What happens if no arguments are passed and `args[0]` is accessed?
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Question 6 of 15
6. Question
Can Java main method be written without arguments?
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Question 7 of 15
7. Question
What is the default value of `args.length` when no arguments are passed?
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Question 8 of 15
8. Question
How are command line arguments separated?
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Question 9 of 15
9. Question
What will be the output of this code when run with `java App 4 5`?
public class App { public static void main(String[] args) { int sum = Integer.parseInt(args[0]) + Integer.parseInt(args[1]); System.out.println(sum); } }
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Question 10 of 15
10. Question
Which exception is thrown when you access an invalid index in `args[]`?**
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Question 11 of 15
11. Question
Can we pass arguments with spaces to Java programs?
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Question 12 of 15
12. Question
Can the name of the `args` parameter be changed?
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Question 13 of 15
13. Question
Which of the following is true about `args[]` in Java?
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Question 14 of 15
14. Question
What is the purpose of command line arguments in Java?
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Question 15 of 15
15. Question
If you run `java Test a b c`, what does `args[2]` contain?
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Summary
This quiz covers command line syntax, argument parsing, runtime behavior, and exceptions related to Java’s `String[] args`. A must-practice for beginners and those preparing for coding interviews.
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