title: output string using java textfield.setText() by using for loop
body: <p>The question is, I try to make second textfield (textFieldGen) to print out the exact result likes console. Currently, second textfield shows one string only. </p>
  
  <p>This is my first coding on java GUI. 
  (extra info, I built it using Eclipse with WindowBuilder + GEF )    </p>
  
  <pre><code>import java.awt.EventQueue;
  import javax.swing.JFrame;
  import javax.swing.JOptionPane;
  import java.awt.TextField;
  import java.awt.Label;
  import java.awt.Button;
  import java.awt.event.ActionEvent;
  import java.awt.event.ActionListener;
  import java.util.Random;
  
  public class PassGenerator {
  private JFrame frmPasswordGenerator;
  
  /**
   * Launch the application.
   */
  public static void main(String[] args) {
      EventQueue.invokeLater(new Runnable() {
          public void run() {
              try {
                  PassGenerator window = new PassGenerator();
                  window.frmPasswordGenerator.setVisible(true);
              } catch (Exception e) {
                  e.printStackTrace();
              }
          }
      });
  }
  
  /**
   * Create the application.
   */
  public PassGenerator() {
      initialize();
  }
  
  /**
   * Initialize the contents of the frame.
   */
  private void initialize() {
      frmPasswordGenerator = new JFrame();
      frmPasswordGenerator.setTitle("Password Generator");
      frmPasswordGenerator.setBounds(100, 100, 419, 229);
      frmPasswordGenerator.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frmPasswordGenerator.getContentPane().setLayout(null);
  
      final TextField textFieldGen = new TextField();
      final TextField textFieldPass = new TextField();
  
      textFieldPass.setBounds(74, 60, 149, 19);
      frmPasswordGenerator.getContentPane().add(textFieldPass);
  
      Label labelPass = new Label("Password Length:");
      labelPass.setBounds(74, 33, 177, 21);
      frmPasswordGenerator.getContentPane().add(labelPass);
  
      Button genButton = new Button("Generate");
      genButton.setBounds(262, 60, 86, 23);
      frmPasswordGenerator.getContentPane().add(genButton);
      // Add action listener to button
      genButton.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e) {
          // Execute when button is pressed
          //System.out.println("You clicked the button");
              String getTxt = textFieldPass.getText();
              boolean y = true;
  
              do{
                  try{
                      int c = Integer.parseInt(getTxt);
                      Random r = new Random();
                      String[] alphabet = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","w","x","y","z"};
                      int nc = 0-c;
                      int c2 = c/2;
                      int nc2 = 0-c2;
                      int ncm = (nc+1)/2;
  
                      if (c%2 == 0){
                          for(int x = nc2; x&lt;0;x++){
                              int alphaNum = r.nextInt(26);
                              System.out.print(alphabet[alphaNum]);
                              String alpha = alphabet[alphaNum];
                              textFieldGen.setText(alpha.toString());
                              int numNum = r.nextInt(10);
                              System.out.print(numNum);
                              textFieldGen.setText(Integer.toString(numNum));
                          }
                      }
                      else {
                          for(int x = ncm; x&lt;0;x++){
                              int alphaNum = r.nextInt(26);
                              System.out.print(alphabet[alphaNum]);
                              String alpha = alphabet[alphaNum];
                              textFieldGen.setText(alpha.toString());
                              int numNum = r.nextInt(10);
                              System.out.print(numNum);
                              textFieldGen.setText(Integer.toString(numNum));
                          }
                          int numNum = r.nextInt(10);
                          System.out.print(numNum);
                          textFieldGen.setText(Integer.toString(numNum));
                      }
                      y = false;
                  }
                  catch (NumberFormatException e1 ){
                      int messageType = JOptionPane.PLAIN_MESSAGE;
                      JOptionPane.showMessageDialog(null, "Please Enter Integer only", "Error!!", messageType);
                      y = false;
                  }
              }while (y);
          }
      });          
  
      Label labelGen = new Label("Generated Password:");
      labelGen.setBounds(74, 109, 149, 21);
      frmPasswordGenerator.getContentPane().add(labelGen);
  
  
      textFieldGen.setBounds(74, 136, 149, 19);
      frmPasswordGenerator.getContentPane().add(textFieldGen);
  
      Button copyButton = new Button("Copy");
      copyButton.setBounds(262, 136, 86, 23);
      frmPasswordGenerator.getContentPane().add(copyButton);  
  }
  
  }
  </code></pre>