Find floor value of a number using Math.floor

/*
  Find floor value of a number using Math.floor
  This java example shows how to find a floor value of a number using floor method
  of Java Math class. floor method returns the largest interger which is not grater
  than the value.
*/
 
public class FindFloorValueExample {
 
  public static void main(String[] args) {
 
    /*
     * To find a floor value, use
     * static double floor(double d) method of Math class.
     *
     * It returns a largest integer which is not grater than the argument value.
     */
 
    //Returns the same value
    System.out.println(Math.floor(70));
 
    //returns largest integer which is not less than 30.1, i.e. 30
    System.out.println(Math.floor(30.1));
 
    //returns largest integer which is not less than 15.5, i.e. 15
    System.out.println(Math.floor(15.5));
 
    //in this case it would be -40
    System.out.println(Math.floor(-40));
 
    //it returns -43.
    System.out.println(Math.floor(-42.4));
 
    //returns 0
    System.out.println(Math.floor(0));
 
  }
}
 
/*
Output would be
70.0
30.0
15.0
-40.0
-43.0
0.0
*/