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POHow would I take a TextField input, take each letter, and put it into chars?
 

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  1. POHow would I take a TextField input, take each letter, and put it into chars?
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    <p>I am trying to make code with a GUI that allows the user to enter a word in the JTextField and then have it check if it's a palindrome (i.e Ono is a palindrome, it is the same back and forth). How would I take the JTextField and convert them into chars to check if the sentence is a palindrome? (and also, how would I remove the spaces, punctuation, etc?) This is my current code set up</p> <pre><code>import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.util.Stack; /** * Write a description of class Palidromania_Kevin here. * * @author Kevin Hy * @version 09/23/13 */ public class Palindromania extends JFrame { public JPanel panel1,panel2; public JLabel main1; public JButton check; public JTextField enterPal; public String inputWord,letter; public int num; public char checker; public Stack&lt;String&gt; stack = new Stack&lt;String&gt;(); public Palindromania () { super ("Palindromania Checker"); setSize (1024,768); Container container = getContentPane(); panel1 = new JPanel(); panel1.setBackground (new Color(10,50,50)); panel1.setLayout (new FlowLayout()); panel2 = new JPanel(); panel2.setBackground (new Color(255,255,255)); panel2.setLayout (new FlowLayout()); main1 = new JLabel ("Palindromania Checker"); check = new JButton("Verify Palindrome"); ButtonHandler handler = new ButtonHandler(); check.addActionListener(handler); enterPal = new JTextField(8); container.add(panel1,BorderLayout.NORTH); container.add(panel2,BorderLayout.CENTER); panel2.add(enterPal); panel2.add(check); setVisible(true); } public static void main (String [] args) { Palindromania application = new Palindromania (); } public class ButtonHandler implements ActionListener { public void actionPerformed (ActionEvent event) { if (event.getSource () == check)//Check if palindrome button { inputWord="";letter=""; inputWord=enterPal.getText(); inputWord=inputWord.toLowerCase(); inputWord=inputWord.replace("[ !'-,]",""); for (int x=0; x&lt;=inputWord.length()-1;++x)//inputs lettes into the stack { checker=inputWord.charAt(x); letter+=checker; stack.add(letter); letter=""; JOptionPane.showMessageDialog (null, stack.peek()); } for (int x=0; x&lt;=inputWord.length()-1;++x)//inputs lettes into the stack { checker=inputWord.charAt(x); letter+=checker; stack.add(letter); if (letter.equals(stack.pop())) num+=1; letter=""; } if (num==inputWord.length()) JOptionPane.showMessageDialog (null, "You have a palindrome!"); else JOptionPane.showMessageDialog (null, "This is not a palindrome, sorry!"); } } } </code></pre> <p>}EDIT: I modified back the code, made a mistake with the parse strings, and I can get the char letters to go in a test, and I can get the words that appear to go into the char and be outputted</p> <p>EDIT2: So My main issue now, even though I can add stuff into the stack, is how come my .replace/.tolowercase on the string don't do anything? The strings I enter in the TextField do not get replaced (I.e HELLO WORLD stays as HELLO WORLD, not helloworld), and there is always a null in my stack, even though it is taking letters from inputWord? (i.e HELLO would be nullOLLEH) I also tried to put it into a string</p> <pre><code>compare+=stack.pop(); </code></pre> <p>But all that does is it adds the letters with null to each? (nullnullO, nullOL nullOLL) Why does it have a null?</p> <p>EDIT3: It works! A bit tedious the way I had to do it because I have to use a stack to compare (for the learning purposes)</p>
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    1. USBobby Ores
    1. USBobby Ores
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      1. POHow would I take a TextField input, take each letter, and put it into chars?
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    2. VO
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    1. COWhy are you pushing the string onto a stack? If you know the gist of what you want to do, then explain it to us. This *seems* to be a request for someone to write the code for you, which is not considered appropriate. Show what you have done so far to solve the specific problem you're having.
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      1. POHow would I take a TextField input, take each letter, and put it into chars?
      1. USJim Garrison
    2. COWhy not simply [reverse the `String`](http://stackoverflow.com/a/7569370/1076463) and compare it with the original one
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      1. POHow would I take a TextField input, take each letter, and put it into chars?
      1. USRobin
    3. COI can't reverse the string because we are supposed to use a stack or queue to compare the strings together (since the stack takes the letters in and the word itself would be backwords, it should be able to compare?)
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      1. POHow would I take a TextField input, take each letter, and put it into chars?
      1. USBobby Ores
 

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