Databases
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PO
 

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  1. PO
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    <pre><code> I think this may help you </code></pre> <p>private void pay_saveActionPerformed(java.awt.event.ActionEvent evt) {<br> String dbUrl = "jdbc:mysql://localhost/hostel"; String dbClass = "com.mysql.jdbc.Driver"; PreparedStatement ps1 = null;</p> <p>try { Class.forName("com.mysql.jdbc.Driver");</p> <pre><code> con = DriverManager.getConnection (dbUrl,"root","17121990"); System.out.println("connected!"); String firstname=pay_enter_firstname.getText(); String lastname=pay_enter_lastname.getText(); String amt=pay_enter_amt.getText(); int amount=Integer.parseInt(amt); String day=pay_enter_date.getText(); String cheque_no=pay_enter_chequeno.getText(); String mode=pay_enter_mode.getText(); int totalamount=10000; int bal_amt=totalamount-amount; String remark=pay_enter_remark.getText(); int id = Integer.parseInt(pay_enter_id.getText()); Statement stmt = con.createStatement( ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE); ResultSet rs = stmt.executeQuery("SELECT id, lastamtreceived FROM payment"); if(rs.next()) { stmt = con.createStatement( ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE); rs = stmt.executeQuery("SELECT id, lastamtreceived FROM payment"); while(rs.next()) { int temp =rs.getInt(1); if (temp ==id) { int amtrecvd2= rs.getInt(2); bal_amt=totalamount- (amtrecvd2+amount); String updt = "UPDATE payment SET Amountreceivd="+(amtrecvd2+amount)+",lastamtreceived="+amount+",dte='"+day+"', balance_amt ="+bal_amt+" WHERE id ="+temp+";" ; Statement stmt1 = con.createStatement(); int result = stmt1.executeUpdate(updt); } } } else { String str=" INSERT INTO payment(id, firstname,lastname,Amountreceivd,dte,lastamtreceived,Creditcashcheque," + "cheque_no,balance_amt,totalamount,Remark) VALUES ("+id+",'"+firstname+"','"+lastname+"',"+amount+",'"+day+"',"+amount+",'"+mode+"','"+cheque_no+"',"+ bal_amt+","+totalamount+",'"+remark+"')"; Statement stmt1=con.createStatement(); int result=stmt1.executeUpdate(str); panel_feesframe.setVisible(false); } panel_feesframe.setVisible(false); </code></pre> <p>con.close(); } catch (ClassNotFoundException | SQLException | NumberFormatException e) { e.printStackTrace(); }</p>
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    1. This table or related slice is empty.
    1. POadding the values from gui to the database table
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      1. PTQuestion
    1. PTAnswer
    1. USBiswajit
    1. USBiswajit
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. CO`rs.next()` is being called twice so the 1st value in the 0th position is ignored.
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      1. USAashray
    2. COI have edited the code
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      1. USBiswajit
    3. COnow this will work only for the 1st row returned. It won't check the 2nd,3rd and so on.
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      1. USAashray
 

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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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