Here you can find the source of startsWithIgnoreCase(final String string, final String start)
public static boolean startsWithIgnoreCase(final String string, final String start)
//package com.java2s; /*/*w ww.ja v a2s.c o m*/ * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * * * Copyright 2011-2014 Peter G?ttinger * */ public class Main { public static boolean startsWithIgnoreCase(final String string, final String start) { return startsWithIgnoreCase(string, start, 0); } public static boolean startsWithIgnoreCase(final String string, final String start, final int offset) { assert string != null; assert start != null; if (string.length() < offset + start.length()) return false; return string.substring(offset, start.length()).equalsIgnoreCase(start); } /** * Equal to {@link String#substring(int, int)}, but allows negative indices that are counted from the end of the string. * * @param s * @param start * @param end * @return */ public static final String substring(final String s, int start, int end) { if (start < 0) start = start + s.length(); if (end < 0) end = end + s.length(); if (end < start) throw new IllegalArgumentException("invalid indices"); return "" + s.substring(start, end); } }