comparison Integer object with primitive int

Question

I am comparing integer object with primitive int but getting null pointer exception if Integer object is null

public static void main(String[] args) {

        Integer a = null;
        int b = 1;

        if (a != b) {
            System.out.println("True");
        }

    }


Output : Exception in thread "main" java.lang.NullPointerException
    at com.nfdil.loyalty.common.Test.main(Test.java:10)

I am getting this because its trying to convert null integer object (a.intValue()) into primitive int.

Is there any other way to avoid this?

Answer 1

You can use Objects.equals:

if (a == null || ! Objects.equals(a, b)) { ... }