Does the main method get an initialized array or are the strings in the command line enter directly in to the parameter as I type?

Question

For example, if I want to print an array length, I can not do that:

public class Test{
     public static void main(String [] args){
          System.out.println(worngParam({"first", "second", "ect"}));
     }
     public static int worngParam(String [] strings){
          return strings.length;
     }
}

This is an error!

The first two lines in main must be

String [] strings = {"first", "second", "ect"};
System.out.println(worngParam(strings));

But even so I can do that:

System.out.println(args.length);//If of course args is not empty

My question is how does the parameter get into the main method?

Although any method can accept a constant variabls such as 3, "word", 'a'. But she can not get an initialization of an array like this {1,8} or {"word2", "word3"}

Answer 1

Supposed you run your java class file like this

javac Test.java
java -cp . Test firstParam secondParam thirdParam

Then in your main method args will have a value like

args = new String[]{"firstParam", "secondParam", "thirdParam"};