Java String Capitalize capitalize(String string)

Description

Capitalize string.

License

Open Source License

Parameter

Parameter	Description
string	string to capitalize

Return

capitalized string

Declaration

public static String capitalize(String string) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

public class Main {
    /**/* w ww .  j a  v a2 s .c om*/
     * Capitalize string.
     * 
     * @param string string to capitalize
     * @return capitalized string
     */
    public static String capitalize(String string) {
        if (string == null || string.isEmpty()) {
            return string;
        }
        int index = 0, length = string.length();
        while (index < length - 1) {
            if (Character.isAlphabetic(string.charAt(index))) {
                break;
            }
            ++index;
        }
        if (index == length) {
            return string;
        } else {
            StringBuilder builder = new StringBuilder();
            builder.append(string.substring(0, index));
            builder.append(Character.toUpperCase(string.charAt(index)));
            builder.append(string.substring(index + 1));
            return builder.toString();
        }
    }

    /**
     * Append string to line.
     * 
     * @param line original line
     * @param append string to append
     * @return fixed string
     */
    public static String append(String line, String append) {
        return prependAndAppend(line, "", append);
    }

    /**
     * Prepend string to beginning of line and append string to end of line.
     * 
     * @param line original line
     * @param prepend string to prepend
     * @param append string to append
     * @return fixed line
     */
    public static String prependAndAppend(String line, String prepend, String append) {
        StringBuilder builder = new StringBuilder();
        builder.append(prepend);
        builder.append(line);
        builder.append(append);
        return builder.toString();
    }
}

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