actionPerformed problem

[tomitzel]

Hi, I'm receiveing the folowing error message:Exception in thread "main"

Quote:

java.lang.Error: Unresolved compilation problems:
void is an invalid type for the variable actionPerformed
Syntax error on token "(", ; expected
Syntax error on token ")", ; expected

The java file is this:

Code:

/**
 * 
 */
package pachet;

import java.awt.TextArea;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.*;

import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;

/**
 * @author Militaru Tomita
 *
 */
public class LibrarySystem   {

	Library tomex = new Library("books.txt", "members.txt");
	public static void main(String[] args) {
		@SuppressWarnings("unused")
		LibrarySystem s = new LibrarySystem();
	
	@SuppressWarnings("deprecation")
	
		
		JFrame fereastra = new JFrame("Tomex v1.0");
		fereastra.show();
		fereastra.setSize(500, 300);
		JMenuBar meniu = new JMenuBar();
		
		JMenu menu1 = new JMenu("Carti");
	    meniu.add(menu1);
	    JMenuItem item1 = new JMenuItem("Adauga o carte");
	    item1.addActionListener((ActionListener) fereastra);
	    menu1.add(item1);
	    JMenuItem item2 = new JMenuItem("Afiseaza toate cartile");
	    item2.addActionListener((ActionListener) fereastra);
	    menu1.add(item2);
	    JMenuItem item3 = new JMenuItem("Afiseaza toate cartile disponibile");
	    item3.addActionListener((ActionListener) fereastra);
	    menu1.add(item3);
	    JMenuItem item4 = new JMenuItem("Afiseaza toate cartile imprumutate");
	    item4.addActionListener((ActionListener) fereastra);
	    menu1.add(item4);
	    
	    JMenu menu2 = new JMenu("Membri");
	    meniu.add(menu2);
	    JMenuItem item5 = new JMenuItem("Adauga membru nou");
	    item5.addActionListener((ActionListener) fereastra);
	    menu2.add(item5);
	    JMenuItem item6 = new JMenuItem("Sterge un membru");
	    item6.addActionListener((ActionListener) fereastra);
	    menu2.add(item6);
	    JMenuItem item7 = new JMenuItem("Afiseaza toti membrii");
	    item7.addActionListener((ActionListener) fereastra);
	    menu2.add(item7);
	    
	    JMenu menu3 = new JMenu("Imprumuta");
	    meniu.add(menu3);
	    JMenuItem item8 = new JMenuItem("Imprumuta o carte");
	    item8.addActionListener((ActionListener) fereastra);
	    menu3.add(item8);
	    JMenuItem item9 = new JMenuItem("Returneaza o carte");
	    item9.addActionListener((ActionListener) fereastra);
	    menu3.add(item9);
	    
	    fereastra.setJMenuBar(meniu);
	    TextArea t = new TextArea("Hello", 5, 40);
	    
	    fereastra.add(t);
	    public void actionPerformed(ActionEvent e){
	    	
	    }
	}
	
}

[tim]

Hello tomitzel

You cannot create a new method definition inside the declaration of a method using modifiers. Also, fereastra does not implement the ActionListener interface, fereastra is only a JFrame. Try extending LibrarySystem form JFrame and let it implement ActionListener.