Question
Design and code a Swing GUI to translate text that is input in English into Pig Latin. You can assume that the sentence contains no punctuation. The rules for Pig Latin are as follows:
a. For words that begin with consonants, move the leading consonant to the end of the word and add “ay.” Thus, “ball” becomes “allbay”; “button” becomes “uttonbay”; and so forth.
b. For words that begin with vowels, add “way” to the end of the word. Thus, “all” becomes “allway”; “one” becomes “oneway”; and so forth.
Use a FlowLayout with a JTextArea for the source text and a separate JtextArea for the translated text. Add a JButton with an event to perform the translation. A sample application is shown next with the text translated to Pig Latin.
To parse the source text, note that you can use the Scanner class on a String. For example the following code
Scanner scan = new Scanner("foo bar zot");
while (scan.hasNext())
{
System.out.println(scan.next());
}
will output
foo
bar
zot
Answer
import java.util.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
public class EnglishToPigLatin extends JFrame{
private JTextArea inputArea, outputArea;
private JButton bTranslate;
public EnglishToPigLatin() throws IOException{
super("English to Pig Latin Conversion");
Container container = getContentPane();
container.setLayout(new FlowLayout());
inputArea = new JTextArea(10, 20);
inputArea.setEditable(true);
inputArea.setLineWrap(true);
inputArea.setWrapStyleWord(true);
container.add(inputArea);
bTranslate = new JButton("Translate");
container.add(bTranslate);
bTranslate.addActionListener(
new ActionListener(){
public void actionPerformed(ActionEvent e){
Scanner sc = new Scanner(inputArea.getText());
String output = "";
while (sc.hasNext())
output += toPigLatin(sc.next()) + " ";
outputArea.setText(output);
}
}
);
outputArea = new JTextArea(10, 20);
outputArea.setEditable(false);
outputArea.setLineWrap(true);
outputArea.setWrapStyleWord(true);
container.add(outputArea);
setSize(300, 450);
setVisible(true);
}
public static String toPigLatin (String str)
{
String result = "";
if (isVowel(str.charAt(0)))
result = str + "way";
else
{
for (int i=1; i<str.length(); i++)
result += str.charAt(i);
result += str.charAt(0) + "ay";
}
return result;
}
public static boolean isVowel (char ch)
{
String vowels = "aAeEiIoOuU";
if (vowels.indexOf(ch) == -1)
return false;
else
return true;
}
public static void main(String args[]){
try{
EnglishToPigLatin window = new EnglishToPigLatin();
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
catch(Exception e){
JOptionPane.showMessageDialog(null, "Error" + e, "Error", JOptionPane.ERROR_MESSAGE);
}
}
}