Java String Camel Case To camelCaseSpace(final String str)

Description

Converts a camel cased string into a string where each upper case letter is prefixed with a space.

License

Apache License

Parameter

Parameter	Description
str	a camel cased string

Return

a string where each upper case letter is prefixed with a space

Declaration

public static String camelCaseSpace(final String str) 

Method Source Code

//package com.java2s;
/*/*from w ww  .j a v a 2s .com*/
 * 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 {
    /**
     * Converts a camel cased string into a string where each upper case letter is prefixed with a
     * space.
     * 
     * @param str
     *            a camel cased string
     * @return a string where each upper case letter is prefixed with a space
     */
    public static String camelCaseSpace(final String str) {
        if (str.length() == 0) {
            throw new RuntimeException("camelCaseSpace not allowed for string length 0");
        }

        final char[] charArray = str.toCharArray();
        final StringBuilder result = new StringBuilder(charArray[0] + "");
        for (int i = 1; i < charArray.length; i++) {
            final char c = charArray[i];

            if (Character.isUpperCase(c)) {
                result.append(' ');
            }

            result.append(c);
        }

        return result.toString();
    }
}

Related

1. camelCaseIt(String mappingName, String separator)
2. camelCaseMatch(String word, String abbr)
3. camelCaseNameToConstant(String camelCaseName)
4. camelCaseOrSpaceToDashed(String s)
5. camelCasePrefix(String strPrefix)
6. camelCaseToDash(String input)
7. camelCaseToDashes(String camelCaseString, int startIndex, String prefix)
8. camelCaseToDashLowerName(String name)
9. camelCaseToDashSeperated(String s)