What does “String[] args” contain in java?

Question

When I run the following program:

public class Test
{
    public static void main(String[] args)
    {
        System.out.println(args);
    }
{

Answer 1

It's a string array.

1. Modify your code to this:

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

2. Now compile this code:
   

$>javac Test.java

3. Now run:

$>java Test hello

This will print: "hello"

Because "hello" is the argument you are passing to your class.

If you try: args[x], where x=0..n and run your class via command line: java Test your arguments, then you will see any contents which you pass..