Java String Camel Case Format toCamelCase(String s)

Description

to Camel Case

License

Open Source License

Declaration

public static String toCamelCase(String s) 

Method Source Code

//package com.java2s;
/*/*from  www.  j a v  a 2 s.c om*/
 * Copyright 2015, Yahoo Inc.
 * Copyrights licensed under the Apache 2.0 License.
 * See the accompanying LICENSE file for terms.
 */

public class Main {
    public static String toCamelCase(String s) {
        String[] parts = s.split("_");
        if (parts.length > 1) {
            return convertComponentsToCamelCaseName(parts);
        } else if (isAllUppercase(s)) {
            s = s.toLowerCase();
        }
        return s;
    }

    private static String convertComponentsToCamelCaseName(String[] parts) {
        StringBuilder result = new StringBuilder();
        for (String s : parts) {
            s = s.toLowerCase();
            if (s.length() != 0) {
                if (result.length() == 0) {
                    result.append(s);
                } else {
                    result.append(capitalize(s));
                }
            }
        }
        return result.toString();
    }

    private static boolean isAllUppercase(String s) {
        for (int i = 0; i < s.length(); i++) {
            if (!Character.isUpperCase(s.charAt(i))) {
                return false;
            }
        }
        return true;
    }

    public static String capitalize(String s) {
        return s.substring(0, 1).toUpperCase() + s.substring(1);
    }
}

Related

1. toCamelCase(String name)
2. toCamelCase(String original)
3. toCamelCase(String originalName)
4. toCamelCase(String origString)
5. toCamelCase(String s)
6. toCamelCase(String s)
7. toCamelCase(String s)
8. toCamelCase(String s)
9. toCamelCase(String s)