Please explain why!

Question

Java array

Answer 1

Why it prints 1....not 2

Answer 2

What means by value?

Answer 3

What happens when the following program is compiled and run. Select the one correct answer.
public class example
{
int i[] = {0};
public static void main(String args[])
{
int i[] = {1};
change_i(i);
System.out.println(i[0]);
}
public static void change_i(int i[])
{
int j[] = {2};
i = j;
}
}