Here you can find the source of rightPadding(int id, int value)
public static int rightPadding(int id, int value)
//package com.java2s; /******************************************************************************* * Copyright [2014] [Joarder Kamal]/*from w w w .ja va2 s. c om*/ * * 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 int rightPadding(int id, int value) { return ((int) Math.pow(10, Math.floor(Math.log10(value)) + 1) * id + value); } }