Java tutorial
//package com.java2s; /* * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE * file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file * to you 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 { /** * <p> * Compares two Strings, returning <code>true</code> if they are equal ignoring the case. * </p> * <p/> * <p> * <code>Nulls</code> are handled without exceptions. Two <code>null</code> references are considered equal. * Comparison is case insensitive. * </p> * * @param str1 the first string * @param str2 the second string * @return <code>true</code> if the Strings are equal, case insensitive, or both <code>null</code> * @see java.lang.String#equalsIgnoreCase(String) */ public static boolean equalsIgnoreCase(String str1, String str2) { return (str1 == null ? str2 == null : str1.equalsIgnoreCase(str2)); } }