//File:	StringPlay.java
public class StringPlay
{
	public static void main (String [] args)
	{
		String phrase = "I wonder what this does.";
		
		System.out.println (phrase);
		System.out.println (phrase.toUpperCase());
		System.out.println (phrase.toLowerCase());
		System.out.println ("The length of this phrase is: " + phrase.length());
		System.out.println ("The tenth character in this phrase is: " + phrase.charAt(10-1));
		System.out.print ("The substring from character 5 to character 10 is "
				+ phrase.substring (4, 10));
	}
}