Cake Shop Inventory Management System in Java

int sum = 0;

       if(chkCho.isSelected())
       {
           String cho = "Chocolate cake";
           int  price = 1000;
           int  qty = Integer.parseInt(txtCqty.getText());
           int tot = price * qty;   
           model = (DefaultTableModel)jTable1.getModel();
           
           model.addRow(new Object[]          
           {
               cho,
               price,
               qty,
               tot 
           }        
          );    
       }
        if(chkRed.isSelected())
       {
          String crispy  = "Red velvet cake";
           int  price = 1200;
           int  qty = Integer.parseInt(txtRqty.getText());
           int tot = price * qty;   
           model = (DefaultTableModel)jTable1.getModel();
           
           model.addRow(new Object[]          
           {
               crispy,
               price,
               qty,
               tot 
           }        
            );    
       }
        
         if(chkCup.isSelected())
       {
          String hotdeal  = "Cupcake";
           int  price = 500;
           int  qty = Integer.parseInt(txtCupqty.getText());
           int tot = price * qty;   
           model = (DefaultTableModel)jTable1.getModel();
           
           model.addRow(new Object[]          
           {
               hotdeal,
               price,
               qty,
               tot 
           }        
            );    
       }

       for(int i=0; i<jTable1.getRowCount(); i++)
       {
           sum = sum + Integer.parseInt(jTable1.getValueAt(i, 3).toString());  
       }
       
       txtbill.setText(Integer.toString(sum));

i have attached the video link below. which will do this tutorials step by step

Cake Shop Inventory Management using Java

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Cake Shop Inventory Management using Java