Why does printing a Java array show a memory location [duplicate]

Answer 1

I[ is kind of the "class type" for an array of integer. Printing out this array itself will print the class type @ then a short hex string because that's the hash code of the array. It's the same as something you've probably seen like Object@0b1ac20. This is implemented as the default toString() for Object.

Maybe you want to return a specific element of the array or print the whole array using a for loop?

Answer 2

because that is how array's toString() method is implemented

Answer 3

Long story short, you can't easily print an array in java. Do this:

System.out.println( Arrays.toString(answer) );