public int getComboBox3 () {
        if (jComboBox3.getSelectedIndex() == 0) return 10;
        else if (jComboBox3.getSelectedIndex() == 1) return 50;
        else if (jComboBox3.getSelectedIndex() == 2) return 100; 
        else if (jComboBox3.getSelectedIndex() == 3) return 250; 
        else if (jComboBox3.getSelectedIndex() == 4) return 500; 
        else if (jComboBox3.getSelectedIndex() == 5) return 1000; 
        
        return 5000;
    }