Java tutorial
public class Main { public static void main(String[] args) { // get a number as integer Number x = new Integer(123456); // get a number as float Number y = new Float(9876f); // print their value as double System.out.println("x as integer :" + x + ", x as double:" + x.doubleValue()); System.out.println("y as float::" + y + ", y as double:" + x.doubleValue()); } }