/**
 * StringBuilderDemo: construct the same String three different ways.
 */
public class StringBuilderDemo {

	public static void main(String[] argv) {

		String s1 = "Hello" + ", " + "World";
		System.out.println(s1);

		// Build a StringBuilder, and append some things to it.
		StringBuilder sb2 = new StringBuilder();
		sb2.append("Hello");
		sb2.append(',');
		sb2.append(' ');
		sb2.append("World");

		// Get the StringBuilder's value as a String, and print it.
		String s2 = sb2.toString();
		System.out.println(s2);

		// Now do the above all over again, but in a more 
		// concise (and typical "real-world" Java) fashion.

		StringBuilder sb3 = new StringBuilder().append("Hello").
			append(',').append(' ').append("World");
		System.out.println(sb3.toString());
	}
}