Java for loop by value or by reference

Question

I figured out a a problem in my Code. First the code:

public class Main {

    /**
     * @param args
     */
    public static void main(String[] args) {
           


        

Answer 1

 s = "over"; 

just changes the reference of s and not the String in the array.

blablubb[i] = "over";

changes the value stored at ith location in the array