Here you can find the source of formatTime(String time)
public static String formatTime(String time)
//package com.java2s; /*//from ww w .java2 s. c om * Copyright 2012 Kazumune Katagiri. (http://d.hatena.ne.jp/nemuzuka) * * 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. */ public class Main { public static String formatTime(String time) { String hh = time.substring(0, 2); String mm = time.substring(2); return hh + ":" + mm; } }