Java Char Upper Case toUpperCase(Object object)

Description

Attempts to convert an object to an uppercase string.

License

Apache License

Declaration

public static Object toUpperCase(Object object) 

Method Source Code

//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./*from w w w. j  a va2 s  .c om*/
 ****************************************************************/

public class Main {
    /**
     * Attempts to convert an object to an uppercase string.
     */
    public static Object toUpperCase(Object object) {
        if ((object instanceof String) || (object instanceof StringBuffer)) {
            return object.toString().toUpperCase();
        } else if (object instanceof char[]) {
            return new String((char[]) object).toUpperCase();
        } else {
            return object;
        }
    }

    /**
     * Attempts to convert an object to Comparable instance.
     */
    public static String toString(Object object) {
        if (object == null) {
            return null;
        } else if (object instanceof String) {
            return (String) object;
        } else if (object instanceof StringBuffer) {
            return object.toString();
        } else if (object instanceof char[]) {
            return new String((char[]) object);
        } else {
            throw new ClassCastException("Invalid class for String conversion:" + object.getClass().getName());
        }
    }
}

Related

1. toUpperCase(char ch)
2. toUpperCase(char input)
3. toUpperCase(char[] cs)
4. toUpperCase(final byte b)
5. toUpperCase(final char[] buffer, final int offset, final int limit)
6. toUppercaseHex(final int halfbyte)
7. toUppercaseHexString(final char c)