Java tutorial
package me.tongfei.progressbar; /*- * #%L * TongFei ProgressBar * %% * Copyright (C) 2014 - 2018 Tongfei Chen * %% * 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. * #L% */ import org.joda.time.Duration; /** * @author Tongfei Chen * @since 0.5.0 */ public class Util { static String repeat(char c, int n) { if (n <= 0) return ""; char[] s = new char[n]; for (int i = 0; i < n; i++) s[i] = c; return new String(s); } static String formatDuration(Duration d) { long s = d.getStandardSeconds(); return String.format("%d:%02d:%02d", s / 3600, (s % 3600) / 60, s % 60); } }