Java tutorial
//package com.java2s; /* * Copyright 2013 yanzm <anzai.y.aa@gmail.com> * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.util.Locale; public class Main { public static String convertByteWithUnit(long b) { if (b > 1024 * 1024 * 1024) { return String.format(Locale.ENGLISH, "%.2fGB", (float) b / (1024 * 1024 * 1024)); } else if (b > 1024 * 1024) { return String.format(Locale.ENGLISH, "%.2fMB", (float) b / (1024 * 1024)); } else if (b > 1024) { return String.format(Locale.ENGLISH, "%.2fkB", (float) b / 1024); } else { return b + "byte"; } } }