Sentence Capitalization with Java

Simple Java function to capitalize the first word of every sentence:

public static String capitalize(String content){
	Pattern capitalize = Pattern.compile("([\\?!\\.] )([a-z])");
	Matcher m = capitalize.matcher(content);
	while (m.find()) {
		content = m.replaceFirst(m.group(1) + m.group(2).toUpperCase());
		m = capitalize.matcher(content);
	}
	return content;
}

If you have any suggestions on how to improve this method, leave a comment.

Tags: java, regex

1. Ramu Says:

   Good work dude, The initial letter is not capitalizing,
   Ex:
   String test = “hello every one. this is java capitalize . Is is working?.”;
   test = test.toLowerCase();
   System.out.println(capitalize(test));

   I get “hello every one. This is java capitalize . Is is working?.”

   May 26th, 2011 at 2:14 am

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