private void AdjungovanaMatricaButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_AdjungovanaMatricaButtonActionPerformed
         int number1, number2, number3, number4, number5, number6, number7, number8, number9;
       try {
        
        number1 = Integer.parseInt(
               this.a11numberText.getText());
        }
       catch (NumberFormatException e) {
                   JOptionPane.showMessageDialog(this, "Wrong number a11", "ERROR", JOptionPane.ERROR_MESSAGE);
       return;
      } 
       
       try {
        
        number2 = Integer.parseInt(
               this.a12numberText.getText());
        }
       catch (NumberFormatException e) {
                   JOptionPane.showMessageDialog(this, "Wrong number a12", "ERROR", JOptionPane.ERROR_MESSAGE);
       return;
      } 
               try  {
       number3 = Integer.parseInt(
               this.a13numberText.getText());
        }
       catch (NumberFormatException e) {
                   JOptionPane.showMessageDialog(this, "Wrong number a13", "ERROR", JOptionPane.ERROR_MESSAGE);
              return;     
         }          
         try  {           
       number4 = Integer.parseInt(
               this.a21numberText.getText());
         }
       catch (NumberFormatException e) {
                   JOptionPane.showMessageDialog(this, "Wrong number a21", "ERROR", JOptionPane.ERROR_MESSAGE);
          return;
       }         
          try  {            
       number5 = Integer.parseInt(
               this.a22numberText.getText()); 
          }
       catch (NumberFormatException e) {
                   JOptionPane.showMessageDialog(this, "Wrong number a22", "ERROR", JOptionPane.ERROR_MESSAGE);
            return;
       }   
          try  {            
       number6 = Integer.parseInt(
               this.a23numberText.getText());
           }
       catch (NumberFormatException e) {
                   JOptionPane.showMessageDialog(this, "Wrong number a23", "ERROR", JOptionPane.ERROR_MESSAGE);
         return;
       }        
        try  {            
       number7 = Integer.parseInt(
               this.a31numberText.getText());
            }
       catch (NumberFormatException e) {
                   JOptionPane.showMessageDialog(this, "Wrong number a31", "ERROR", JOptionPane.ERROR_MESSAGE);
          return;
       }       
          try  {           
       number8 = Integer.parseInt(
               this.a32numberText.getText());
              }
       catch (NumberFormatException e) {
                   JOptionPane.showMessageDialog(this, "Wrong number a32", "ERROR", JOptionPane.ERROR_MESSAGE);
            return;
       }      
          try  {          
       number9 = Integer.parseInt(
               this.a33numberText.getText());      
          }     
           catch (NumberFormatException e) {
                   JOptionPane.showMessageDialog(this, "Wrong number a33", "ERROR", JOptionPane.ERROR_MESSAGE);
return;
       }
        int Rezultat = (number5 * number9)-(number6 * number8);
        this.ResenjeLabel1.setText(
               " "+ Rezultat);
        
         int Rezultat1 = -((number1 * number9)-(number3 * number8));
         this.ResenjeLabel2.setText(
         " "+ Rezultat1);
         
          int Rezultat2 = (number2 * number6)-(number3 * number5);
         this.ResenjeLabel3.setText(
         " "+ Rezultat2);
         
           int Rezultat3 = -((number4 * number9)-(number6 * number7));
         this.ResenjeLabel4.setText(
         " "+ Rezultat3);
         
           int Rezultat4 = (number1 * number9)-(number3 * number7);
         this.ResenjeLabel5.setText(
         " "+ Rezultat4);
         
           int Rezultat5 = -((number1 * number6)-(number3 * number4));
         this.ResenjeLabel6.setText(
         " "+ Rezultat5);
         
           int Rezultat6 = (number4 * number8)-(number5 * number7);
         this.ResenjeLabel7.setText(
         " "+ Rezultat6);
         
           int Rezultat7 = -((number1 * number8)-(number2 * number7));
         this.ResenjeLabel8.setText(
         " "+ Rezultat7);
         
           int Rezultat8 = (number1 * number5)-(number2 * number4);
         this.ResenjeLabel9.setText(
         " "+ Rezultat8);
    }//GEN-LAST:event_AdjungovanaMatricaButtonActionPerformed