how to chekc if a number is an integer in jav code example

Example 1: integer check in javascript

var a=Number.isInteger(5); //True
var b= Number.isInteger(01); //True
var c=Number.isInteger("10"); //False

console.log(a,b,c);  //true true false

Example 2: how to check if number is integer in java

if(x == (int)x){
 println("x is an integer");
}