[HaBo]

package apiversuch;

import java.io.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;

public class anotherone implements EventListener
{

	static JTextField eingabe = new  JTextField(4);

	static JButton bla = new JButton();
	
	public static void schreiben()
	{

		

		
		JFrame abhaengig = new JFrame("Anotherone");
		JFrame.setDefaultLookAndFeelDecorated(true);

		abhaengig.setVisible(true);
		abhaengig.setPreferredSize(new Dimension(300,300));


		JPanel hola = new JPanel(new BorderLayout());

		bla.setText("change me");

		bla.addActionListener(new ActionListener()
					{
						public  void actionPerformed(ActionEvent d)
							{
								bla.setText((String)eingabe.getText());
								return;	
							}
					}
				     );
	
		hola.add(bla,BorderLayout.SOUTH);
		hola.add(eingabe,BorderLayout.NORTH);
			
	        hola.setBorder(BorderFactory.createEmptyBorder(5,10,15,20));		

		abhaengig.add(hola,BorderLayout.CENTER);
		
		abhaengig.pack();

		return;
	}

}

import javax.swing.*;
import java.awt.event.*;

public class Test {

	private JTextField text;
	private JButton button;

	
	public void foo() {
		button.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ev) {
				text.setText("test");
			}
		});
	}


	

}

import javax.swing.*;
import java.awt.event.*;

public class Test {

	
	public void foo() {
		final JTextField text = new JTextField();
		JButton button = new JButton();
		button.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ev) {
				text.setText("test");
			}
		});
	}


	

}

public class Test {

	
	public void foo() {
		JTextField text = new JTextField();
		JButton button = new JButton();
		Listener listen = new Listener(button,text);
		button.addActionListener(listen);
	}

	public class Listener implements ActionListener {
		JButton b;
		JTextField t;
		public Listener(JButton bu, JTextField txt) {
			b=bu;
			t=txt;
		}
		public void actionPerformed(ActionEvent e) {
			t.setText("Text");
		}
	}
	

}

import javax.swing.*;
import java.awt.event.*;

public class Test implements ActionListener {

	private JTextField text;

	public void foo() {
		text = new JTextField();
		JButton button = new JButton();
		button.addActionListener(this);
	}

	public void actionPerformed(ActionEvent e) {
		text.setText("test");
	}

}