java.lang.Class and equality

Question

According the javadoc of Class

Every array also belongs to a class that is reflected as a Class object that is shared by all arrays with the same element type and number of dimensions.

But when I run the below

int[] intArray = { 1, 2 };
out.println(intArray.getClass().hashCode());
int[] int2Array = { 1, 2 };
out.println(int2Array.getClass().hashCode());

out.println(intArray.equals(int2Array));

I get the below output

1641745
1641745
false

I am wondering why the equals is returning false even though both the arrays are of int type and have the same dimensions.

Answer 1

This is because you're calling equals() on the array instances themselves instead of their Class object. Try:

out.println(intArray.getClass().equals(int2Array.getClass())); //prints true

You could also write:

out.println(int[].class.equals(int[].class)); //prints true thankfully

As an aside, matching hash codes don't necessarily indicate equality, though that doesn't matter here.