Pie Chart.



    public double gt()
    {
        double exp=0;
        try
        {
          Class.forName("com.mysql.jdbc.Driver");
           java.sql.Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3305/supplimentry","root","root");
           String sql1="SELECT sum(Amount) as Amount from expenses";
           java.sql.PreparedStatement pst1=con.prepareStatement(sql1);
            ResultSet rs=pst1.executeQuery();
           while(rs.next())
            {
            exp=rs.getDouble(1);
            }
        }
        catch(Exception e)
        {
          
        }
        return exp;
    }
    public double it()
    {
        double exp=0;
        try
        {
          Class.forName("com.mysql.jdbc.Driver");
           java.sql.Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3305/supplimentry","root","root");
           String sql1="SELECT sum(PSWCST) as PSWCST from inventory";
           java.sql.PreparedStatement pst1=con.prepareStatement(sql1);
            ResultSet rs=pst1.executeQuery();
           while(rs.next())
            {
            exp=rs.getDouble(1);
            }
        }
        catch(Exception e)
        {
          
        }
        return exp;
    }
public void pie()
{
  
        try
       {
           DefaultPieDataset dataset=new DefaultPieDataset();
           JFreeChart piechart;
           Class.forName("com.mysql.jdbc.Driver");
           java.sql.Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3305/supplimentry","root","root");
           String sql1="SELECT sum(Grand_Total) as SaleTotal from sales";
           java.sql.PreparedStatement pst1=con.prepareStatement(sql1);
           ResultSet rs=pst1.executeQuery();
           double gt=0;
           double profit=0;
            while(rs.next())
            {
                double tt=rs.getDouble(1)-(gt()+it());
                System.out.println(tt);
            dataset.setValue("SaleTotal", new Double(rs.getDouble(1)));
           dataset.setValue("ExpensesTotal", new Double(gt()));
           dataset.setValue("InventoryTotal", new Double(it()));
            dataset.setValue("Profit", new Double(tt));
            piechart = ChartFactory.createPieChart("Ace Enterpises", dataset, true, true, false);
            piechart.setBackgroundPaint(Color.WHITE);
            piechart.getTitle().setPaint(Color.BLACK);
            //CategoryPlot p=piechart.getCategoryPlot();
            //p.setRangeGridlinePaint(Color.black);
            ChartPanel ch=new ChartPanel(piechart);
            jPanel1.removeAll();
            jPanel1.add(ch,BorderLayout.CENTER);
            //System.out.println("nnn");
            jPanel1.validate();
          
            }
            con.close();
            pst1.close();
            rs.close();
       }
       catch(Exception e)
       {
           System.out.println(e);
       }

}

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