Extend |
 |  |
Listing of CountSpace.java (See the comment for the program it's for reverses a text string ) // A program that reverses a text string. // Note that there are many ways to do this; this program only demonstrates one way // Kevin Boone, August 1999 import java.applet.Applet; import java.awt.*; public class Reverse1 extends Applet { public void paint (Graphics g) { // 'text' is the String to be reversed String text = "Fred Bloggs"; // Start by creating a character array of exactly the same // length as `text'. // This is because Java allows individual elements of an array // to be changed, // but not individual characters of a String char reversedText[] = new char[text.length()]; // Now move each character in `text' to the right place in // `reversedText' for (int i = 0; i < text.length(); i++) reversedText[i] = text.charAt(text.length() - i - 1); // `reversedText' is an array; Java will not allow us to use //`drawString' to // print an array (it can only print Strings). So we create a new //String // that has exactly the same text as `reversedtext' String reversedTextString = new String(reversedText); // Now print the String g.drawString (reversedTextString, 20, 40); } }
|
