java check if int

1public static boolean isInt(String str) {
2	
3  	try {
4      	@SuppressWarnings("unused")
5    	int x = Integer.parseInt(str);
6      	return true; //String is an Integer
7	} catch (NumberFormatException e) {
8    	return false; //String is not an Integer
9	}
10  	
11}

1if(x == (int)x){
2 println("x is an integer");
3}

1//"% (modulo)" calulates the remainder when the value on the left is divided by the value on the right
2
3float number = 20;
4
5if(number%1 == 0){
6	println("It is an integer");
7} else {
8	println("It is not an integer");
9}