private void AnButtonActionPerformed(java.awt.event.ActionEvent evt) {
    menu.setVisible(true);
    AnButton.setVisible(false);
    AusButton.setVisible(true);
    }

    private void AusButtonActionPerformed(java.awt.event.ActionEvent evt) {
        menu.setVisible(false);
        AnButton.setVisible(true);
        AusButton.setVisible(false);
    }

    private void AusButton1ActionPerformed(java.awt.event.ActionEvent evt) {
        menu1.setVisible(false);
        AnButton1.setVisible(true);
        AusButton1.setVisible(false);
    }

    private void AnButton1ActionPerformed(java.awt.event.ActionEvent evt) {
    menu1.setVisible(true);
    AnButton1.setVisible(false);
    AusButton1.setVisible(true);

    }

    private void jButton12ActionPerformed(java.awt.event.ActionEvent evt)
{
        t1.setText(null);
        t2.setText(null);
        t3.setText(null);
    }

    private void jButton7ActionPerformed(java.awt.event.ActionEvent evt) {
        t1.setText("324");
    }

    private void jButton8ActionPerformed(java.awt.event.ActionEvent evt) {
        t1.setText("417");
    }

    private void jButton9ActionPerformed(java.awt.event.ActionEvent evt) {
        t1.setText("26");
    }

    private void jButton10ActionPerformed(java.awt.event.ActionEvent evt) {
        t1.setText("381");
    }

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
        t2.setText("9.81");
    }

    private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
        t2.setText("1.62");
    }

    private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {
        t2.setText("3.71");
    }

    private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
     t2.setText("8.87");
    }

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
    t2.setText("24.79");
    }

    private void jButton6ActionPerformed(java.awt.event.ActionEvent evt) {
        t1.setText("8848");
    }

    private void jButton11ActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:

        //Berechnung
        double a,b,c;
        int a1,b1,c1;
        float ergebnis;
        a=Double.parseDouble(t1.getText());
        b=Double.parseDouble(t2.getText());
        c=Math.sqrt(2*(a/b));
        ergebnis= (float)c;
        t3.setText(""+ergebnis+" Sekunden");
        a1=(int)a;  //Double zu Int
        b1=(int)b;  //Double zu Int
        c1=(int)c;  //Double zu Int
        //Berechnung

        //Letzte Infos
        e8.setText(e7.getText());
        e7.setText(e6.getText());
        e6.setText(e5.getText());
        e5.setText(e4.getText());
        e4.setText(e3.getText());
        e3.setText(e2.getText());
        e2.setText(e1.getText());
        e1.setText("Höhe: "+a1+" & "+b1+"m/s"+" = "+c1+" Sekunden Fallzeit");
        //Letzte Infos