Main.java Source code

Introduction

Here is the source code for Main.java

Source

//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 {
    private static final String[] CHAR_STRING_ARRAY = new String[128];

    /**
     * <p>Converts the character to a String that contains the one character.</p>
     * 
     * <p>For ASCII 7 bit characters, this uses a cache that will return the
     * same String object each time.</p>
     *
     * <pre>
     *   CharUtils.toString(' ')  = " "
     *   CharUtils.toString('A')  = "A"
     * </pre>
     *
     * @param ch  the character to convert
     * @return a String containing the one specified character
     */
    public static String toString(char ch) {
        if (ch < 128) {
            return CHAR_STRING_ARRAY[ch];
        }
        return new String(new char[] { ch });
    }

    /**
     * <p>Converts the character to a String that contains the one character.</p>
     * 
     * <p>For ASCII 7 bit characters, this uses a cache that will return the
     * same String object each time.</p>
     * 
     * <p>If {@code null} is passed in, {@code null} will be returned.</p>
     *
     * <pre>
     *   CharUtils.toString(null) = null
     *   CharUtils.toString(' ')  = " "
     *   CharUtils.toString('A')  = "A"
     * </pre>
     *
     * @param ch  the character to convert
     * @return a String containing the one specified character
     */
    public static String toString(Character ch) {
        if (ch == null) {
            return null;
        }
        return toString(ch.charValue());
    }
}