import java.awt.BorderLayout;
import java.io.FileWriter;
import java.io.IOException;
import javax.swing.JFrame;
import javax.swing.JTextField;
public class MainClass {
public static void main(String args[]) throws Exception {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JTextField nameTextField = new JTextField();
frame.add(nameTextField, BorderLayout.NORTH);
FileWriter writer = null;
try {
writer = new FileWriter("filename.txt");
nameTextField.write(writer);
} catch (IOException exception) {
System.err.println("Save oops");
exception.printStackTrace();
} finally {
if (writer != null) {
try {
writer.close();
} catch (IOException exception) {
System.err.println("Error closing writer");
exception.printStackTrace();
}
}
}
frame.setSize(250, 100);
frame.setVisible(true);
}
}