Java tutorial
//package com.java2s; public class Main { public static String approximate(int number) { if (number == 0) { return null; } if (number < 1000) { return String.valueOf(number); } else if (number < 10000) { float f = number * 1f / 1000; return String.valueOf(Math.round(f * 10) / 10.0) + "k"; } else { float f = number * 1f / 10000; return String.valueOf(Math.round(f * 10) / 10.0) + "w"; } } }