Java tutorial
//package com.java2s; import java.text.DecimalFormat; public class Main { /** Multiplier for meters to feet. **/ private static final double FEET_CONVERT = 3.2808399; public static String asFeetString(final double meters) { return asFeet(meters) + " ft"; } /** * Convert a number of meters to feet. * @param meters Value to convert in meters. * @return meters converted to feet. */ public static double asFeet(final double meters) { DecimalFormat twoDForm = new DecimalFormat("#.##"); return Double.valueOf(twoDForm.format(meters * FEET_CONVERT)); } }