Thread: Passing dat from Jbutton to another class

Hello everyone
I've a problem. I would like to send string workData from class MamboUi. jButton1ActionPerformed to class showData.showData where it will be worked

This is my code

public class MamboUI extends javax.swing.JFrame {
 
    public String anno;
    public String mese;
    public String workData;
 
    public MamboUI() {
        initComponents();
     }
[...]
 public void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
 
        String anno = (String) comboAnno.getSelectedItem();
        String mese = (String) comboMese.getSelectedItem();
        workData = anno + " " +mese;
        showData t = new showData(); //Indirizzo la Classe = classe.java
        t.joe();                     //indirizzo l'entry point
       } 
 
[...]
}

public class showData  extends JPanel{
 
    static final String USERNAME = "";
    static final String PASSWORD = "";
    static final String CONN_STRING = "jdbc:mysql://localhost:3306/mambo";
    String workData ="";
 
 
    public static void joe() {
        MamboUI dataFrom = new MamboUI();
 
        JFrame jf = new JFrame();
        showData t = new showData();
        jf.setTitle("Test");
        jf.setSize(1350,400);
        jf.setVisible(true);
        jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        jf.add(t);
    }
 
    JTable jt;
    public showData () {
            MamboUI dataFrom = new MamboUI(this);
           workdata ???  <-------
            try {
            [....]
 
            DefaultTableModel tableModel = new DefaultTableModel(columnNames, 0);
            DefaultTableModel NomeGiorni = new DefaultTableModel(colonne, 0);
            Connection conn;
            conn = DriverManager.getConnection(CONN_STRING, USERNAME, PASSWORD);
            Statement stmt = (Statement) conn.createStatement();
            String query = "Select * from alldata where anno = "+anno+" and mese = "+mese+"";
            ResultSet rs = stmt.executeQuery(query);
           [...]
}

Thank you in advance
paps

Adopted this solution (in the meanwhile rewrote the receiving class)

in main class (MamboUI)

public void jButton1ActionPerformed(ActionEvent evt) {                                         
 
        Choice();
    }                                        
 
 
    private void Choice()
    {
        String anno = (String) comboAnno.getSelectedItem();
        String mese = (String) comboMese.getSelectedItem();
        workData = anno + " " +mese;
        displayResult t = new displayResult(workData);
        t.joe(workData);
 
    }

and in the receiving class (displayResult)

public static void joe(String workData){  
 
        displayResult frame = new displayResult(workData);
        frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
        frame.setSize(1200, 500);
        frame.setLocation(80,130);
        frame.setVisible(true);
    }
    public displayResult(String workData)
    {
        super("Gruppo C - Mambo");
        ....
   }

it works like a charme

paps