if statement checks for null but still throws a NullPointerException

Question

In this code.

public class Test {
     public static void testFun(String str) {
         if (str == null | str.length() == 0) {
             System.out.print         


        

Answer 1

The | and & check both the sides everytime.

if (str == null | str.length() == 0)

here we have high possibility to get NullPointerException

Logical || and && check the right hand side only if necessary.

but with logical operator

no chance to get NPE because it will not check RHS