Here you can find the source of toInt(final String s)
public static int toInt(final String s)
//package com.java2s; /*/*from w ww . j a va 2 s .c o m*/ * Copyright 2002-2004 The Apache Software Foundation. * * 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. * * This file contains code derived from StringUtils.java in Apache Commons Lang. * * The remainder of the code is Copyright (c) Microsoft Corporation. All rights * reserved. */ public class Main { public static int toInt(final String s) { final int number; switch (s.charAt(s.length() - 1)) { case 'K': case 'k': number = Integer.parseInt(s.substring(0, s.length() - 1).trim()) * 1024; break; case 'M': case 'm': number = Integer.parseInt(s.substring(0, s.length() - 1).trim()) * 1024 * 1024; break; default: number = Integer.parseInt(s.trim()); } return number; } }