private void btnMaths2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnMaths2ActionPerformed
        // TODO add your handling code here: 
        this.setVisible(false);
        MathsSupport ms = new MathsSupport();
        ms.setVisible(true);
    }//GEN-LAST:event_btnMaths2ActionPerformed