not equal to in java code example

Example 1: javascript check if is array

var colors=["red","green","blue"];

if(Array.isArray(colors)){
    //colors is an array
}

Example 2: java not equal to

if(5 != 4) // != means "not equal to"
  	return true;

Example 3: not equal java

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

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