gettext() java

[G181]

volevo fare un programma che prendesse cio che si scriveva in un jtextfield e poi rimettesse cio che elaboro ho gia scritto questo ma non va sapreste aiutarmi il codice e qui:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Calcolatrice {
	static JFrame window;
	public static void main(String[] args){
		// schedule this for the event dispatch thread (edt)
		SwingUtilities.invokeLater(new Runnable(){
			public void run(){
				displayJFrame();
			}
		});
	}
	static void displayJFrame(){
		window = new JFrame("Test");	
		window.getContentPane().setLayout(new FlowLayout());
		window.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
		window.setResizable(false);
		window.pack();
		window.setVisible(true);
		JTextField Textarea = new JTextField(16);
		Textarea.setPreferredSize(new Dimension(100,20));
		window.add(Textarea);
		JButton showDialogButton = new JButton("INVIO");
		window.add(showDialogButton);
		showDialogButton.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent evt) {
				String data = JTextField.getText();
				System.out.println(data);
			}
		});
		JButton p = new JButton("HELP");
		window.add(p);
		p.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				// display/center the jdialog when the button is pressed
				JDialog d = new JDialog(window, "Hello", true);
				d.setLocationRelativeTo(window);
				d.setVisible(true);
			}
		});
	}
}

[G181]

cercando su internet ho provato questo ma non va cmq sapreste dirmi perche:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Calcolatrice {
	static JFrame window;
	public static void main(String[] args){
		// schedule this for the event dispatch thread (edt)
		SwingUtilities.invokeLater(new Runnable(){
			public void run(){
				displayJFrame();
			}
		});
	}
	static void displayJFrame(){
		window = new JFrame("Test");	
		window.getContentPane().setLayout(new FlowLayout());
		window.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
		window.setResizable(false);
		window.pack();
		window.setVisible(true);
		JTextArea TextArea = new JTextArea();
		TextArea.setPreferredSize(new Dimension(100,20));
		window.add(TextArea);
		JButton showDialogButton = new JButton("INVIO");
		window.add(showDialogButton);
		showDialogButton.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent evt) {
				String text1 = TextArea.getText();
				System.out.println(text1);
			}
		});
		JButton p = new JButton("HELP");
		window.add(p);
		p.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				// display/center the jdialog when the button is pressed
				JDialog d = new JDialog(window, "Hello", true);
				d.setLocationRelativeTo(window);
				d.setVisible(true);
			}
		});
	}
}

[G181]

risolto cosi:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Calcolatrice extends JFrame implements ActionListener{
    public static void main(String[] argv){
		//inizialize frame
        Calcolatrice mainApp = new Calcolatrice();
    }
    public Calcolatrice()
    {
		//set frame
        super("JTextArea Example");
		setResizable (false);
		pack();
        setBounds(0, 0, 300, 150);
        getContentPane().setLayout(null);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
		//add textarea
        textarea = new JTextArea();
        textarea.setBounds(0, 0, 294, 78);
		//add button
        button1 = new JButton("Copy Text Area to Console Window");
        button1.setBounds(0, 78, 294, 22);
		//add button
        button2 = new JButton("Copy Text Area to Console Window");
        button2.setBounds(0, 100, 294, 22);
		//add listener
        button1.addActionListener(this);
		button2.addActionListener(this);
		//add frame
        getContentPane().add(textarea);
        getContentPane().add(button1);
		getContentPane().add(button2);
        setVisible(true);
    }
    //eventi
    public void actionPerformed(ActionEvent e){
        if(e.getSource() == button1){System.out.println(textarea.getText());}
        if(e.getSource() == button2){System.out.println(textarea.getText());}
    }
    JButton   button1;
	JButton   button2;
    JTextArea textarea;
}

[MItaly]

Tra parentesi, in futuro ricordati che i blocchi di codice vanno inseriti tra tag [code] ... [/code], altrimenti perdono l'indentazione.