在JOptionPane.showMessageDialog上显示Jtextfield

Question

I'm having trouble in display the Jtextfield on JOptionPane.showMessageDialog. It shows something like Name: javax swing.Jtextfield[,0,19,195x20,invalid.layout......... Section: javax swing.Jtextfield[,0,19,195x20,invalid.layout......... Here is the code:

package quiz_application;

import java.awt.Component;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
/**
*
* @author Christian
*/
public class Quiz_application {
public static void main(String[] args){
 /**
  * Input
  */
 JTextField fullName = new JTextField();
 JTextField section = new JTextField();
 Object[] message = {
"Name:", fullName,
"Section:", section,
 };

 Component parent = null;
 int option = JOptionPane.showConfirmDialog(parent, message,"User  Information", JOptionPane.OK_CANCEL_OPTION);
 if (option == JOptionPane.OK_OPTION)
 {
 String value1 = fullName.getText();
 String value2 = section.getText();
 }
 String outputStr="Name: "+ fullName+"\n"
     +"Section: "+ section;

     JOptionPane.showMessageDialog(null, outputStr,"User Information",JOptionPane.INFORMATION_MESSAGE);
  }
 }

Answer 1

You're printing toString() of both JTextField . I believe you'll only print the User Information dialog if there's one. So, change the if statement to around all the rest of the code and now pass value1 and value2 to outputStr instead of fullName and section . Or, just call fullName.getText() and section.getText() . Like that:

EX1

String value1 = fullName.getText();
String value2 = section.getText();
String outputStr = "Name: " + value1 + "\n" + "Section: " + value2;

EX2

String outputStr = "Name: " + fullName.getText() + "\n" + "Section: " + section.getText();

Expanded If Statement

    if (option == JOptionPane.OK_OPTION) {
        String value1 = fullName.getText();
        String value2 = section.getText();

        String outputStr = "Name: " + value1 + "\n" + "Section: " + value2;

        JOptionPane.showMessageDialog(null, outputStr, "User Information",
            JOptionPane.INFORMATION_MESSAGE);
    }