Returns a string that is equivalent to the specified string with its first character converted to uppercase : String char « Data Type « Java

Returns a string that is equivalent to the specified string with its first character converted to uppercase

import java.util.ArrayList;
import java.util.Collection;

/* Copyright (c) 2008 Google Inc.
 * Licensed 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.

 * Some common string manipulation utilities.
public class Util{

    * Returns a string that is equivalent to the specified string with its
    * first character converted to uppercase as by {@link String#toUpperCase}.
    * The returned string will have the same value as the specified string if
    * its first character is non-alphabetic, if its first character is already
    * uppercase, or if the specified string is of length 0.
    * <p>For example:
    * <pre>
    *    capitalize("foo bar").equals("Foo bar");
    *    capitalize("2b or not 2b").equals("2b or not 2b")
    *    capitalize("Foo bar").equals("Foo bar");
    *    capitalize("").equals("");
    * </pre>
    * @param s the string whose first character is to be uppercased
    * @return a string equivalent to <tt>s</tt> with its first character
    *     converted to uppercase
    * @throws NullPointerException if <tt>s</tt> is null
    public static String capitalize(String s) {
      if (s.length() == 0)
        return s;
      char first = s.charAt(0);
      char capitalized = Character.toUpperCase(first);
      return (first == capitalized)
          ? s
          : capitalized + s.substring(1);



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