Java String Camel Case Format toCamelCase(String str)

Description

to Camel Case

License

Open Source License

Declaration

public static String toCamelCase(String str) 

Method Source Code

//package com.java2s;
/**/*from  w  w  w.  j  av  a 2s . co m*/
 * Copyright (c) 2012, Hadyn Richard
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy 
 * of this software and associated documentation files (the "Software"), to deal 
 * in the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is furnished to do
 * so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in 
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 
 * THE SOFTWARE.
 */

public class Main {
    public static String toCamelCase(String str) {
        String[] strings = str.toLowerCase().split("_");
        for (int i = 0; i < strings.length; i++) {
            strings[i] = capitalize(strings[i]);
        }
        return join(strings);
    }

    public static String capitalize(String str) {
        String capitalized = "";
        for (int i = 0; i < str.length(); i++) {
            char c = str.charAt(i);
            if (i == 0) {
                c = Character.toUpperCase(c);
            }
            capitalized += c;
        }
        return capitalized;
    }

    public static String join(String[] strs) {
        String joined = "";
        for (String str : strs) {
            joined += str;
        }
        return joined;
    }
}

Related

1. toCamelCase(String s, Boolean firstUpper)
2. toCamelCase(String s, String separator, boolean capitalizeFirstPart)
3. toCamelCase(String start)
4. toCamelCase(String str)
5. toCamelCase(String str)
6. toCamelCase(String str)
7. toCamelCase(String str)
8. toCamelCase(String str)
9. toCamelCase(String str)