Java tutorial
//package com.java2s; public class Main { public static String addUnit(float distance) { if (distance == 0) { return "0M"; } else { if (distance > 1000) { distance = distance / 1000; distance = (float) ((double) Math.round(distance * 100) / 100); return distance + "KM"; } else { distance = (float) ((double) Math.round(distance * 100) / 100); return distance + "M"; } } } }