Java Inventory Management System Project

The java Inventory Management System is developed using java. The project is built to manage sales and transactions. To make a new transaction, fields such as:product type , qty needs to be selected. If you like to learn point of sales systems step by step, this is the right place to learn from the beginning. In this tutorial useful for making a point of sales system for a small shops.

Paste the following code inside the button Event

double sum = 0.0;
d = (DefaultTableModel)jTable2.getModel();
int selectIndex = jTable2.getSelectedRow(); 
            
String id = d.getValueAt(selectIndex, 0).toString();
String pname = d.getValueAt(selectIndex, 1).toString();
int price = Integer.parseInt(d.getValueAt(selectIndex, 2).toString());
int qty = Integer.parseInt(JOptionPane.showInputDialog(null,"Enter the Qty"));      
             
int tot = price * qty;
            
d = (DefaultTableModel)jTable3.getModel();
            
d.addRow(new Object[]          
  {
    id,
    pname,
    price,
    qty,
    tot 
  }        
);    
  
for(double i=0; i<jTable3.getRowCount(); i++)
{
	sum = sum + Double.parseDouble(jTable3.getValueAt((int)i,4).toString());
}
        txtbill.setText(Double.toString(sum));

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