how to use or in java code example

Example 1: java or

int num = 9;

if (num == 1 || num == 2) {
  System.out.println("Nope");
  }

if (num == 1 || num == 9) {
  System.out.println("Yep");
  }

Example 2: not equal java

// Int version
int i = 2;
if (i != 3) {}

// String version
String s = "a";
if(!s.equals("b")) {}