Why Not to Use Object.equals() for Comparing Arrays in Java

When comparing two arrays in Java, using Object.equals() only compares the memory addresses, resulting in false even if the arrays contain identical elements.

false

To compare the contents, use java.util.Arrays.equals , which returns true for arrays with the same elements.

true

The Object.equals() method checks reference equality, while overriding equals() in subclasses allows content comparison, typically accompanied by overriding hashCode() . The java.util.Objects.equals method delegates to Object.equals and shares the same pitfalls.

Therefore, when using utility classes for comparison, ensure the objects involved correctly implement equals() and hashCode() .