Messages

Misinformation is tainted information.

As an example, let's see if we pass the "values" of an array, or the reference to the array in a test case...

Code Select Expand


public final class ArrayTest {
    public static void test(int array[]) {
        array[0] = 6;
    }

    public static void main(String args[]) {
        int tvar[] = new int[] {0, 1, 2, 3, 4, 5};

        test(tvar);

        for(int i : tvar) {
            if(i == 6) {
                System.out.println("Point proven.");
                break;
            }
        }
    }
}
As you can see through execution, the point gets proven... If it passed only the value, then me assigning to that "value" wouldn't change it for the original method, thus proving your statements incorrect.


In second case, I refer you to Java's own specifications, opcode 0x01, mnemonic [tex]ACONST-NULL[/tex]

Push the null object reference onto the operand stack.

Notice the wording, reference.