Here you can find the source of endsWith(final CharSequence str, final CharSequence suffix)
public static boolean endsWith(final CharSequence str, final CharSequence suffix)
//package com.java2s; /*//from w w w . ja va2 s .c o m * Copyright (c) 2014 Haixing Hu * * 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 boolean endsWith(final CharSequence str, final CharSequence suffix) { return endsWith(str, 0, str.length(), suffix); } public static boolean endsWith(final CharSequence str, final int endIndex, final CharSequence suffix) { return endsWith(str, 0, endIndex, suffix); } public static boolean endsWith(final CharSequence str, final int startIndex, final int endIndex, final CharSequence suffix) { final int suffixLen = suffix.length(); if (endIndex - startIndex < suffixLen) { return false; } for (int i = 1; i <= suffixLen; ++i) { if (str.charAt(endIndex - i) != suffix.charAt(suffixLen - i)) { return false; } } return true; } }