EmployeeManagement using arrayList show ans in consolve not store in database

windowapp.java
public class windowapp extends javax.swing.JFrame {

    ArrayList arr = new ArrayList();

    public windowapp() {
        initComponents();
    }
--------------button insert -----------
private void btninsertActionPerformed(java.awt.event.ActionEvent evt) {                                         

        arr.add(txtcode.getText());
        arr.add(txtname.getText());
        arr.add(txtcell.getText());
        arr.add(txtadrs.getText());
        System.out.println("" + arr);
        // String Query ="INSERT INTO windowapp values('"+code+'",'"+name+'",'"+cell+'",'"+adrs+'")";
    }