George Kontonikolaou George Kontonikolaou - 3 months ago 19
Java Question

Exception in thread "AWT-EventQueue-0" java.lang.UnsupportedOperationException

package mylogin;

import java.awt.Toolkit;
import java.awt.event.WindowEvent;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.ArrayList; //ArrayList supports dynamic arrays that can grow as needed
import javax.swing.JOptionPane;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;

/**
*
* @author Ccompany
*/
public class Products extends javax.swing.JFrame {

/**
* Creates new form Products
*/
public Products() {
initComponents();
show_Products_in_Jtable(); // EMFANIZEI TA PRODUCTS STON PINAKA
}
//connection to sqlserver
String driver ="com.microsoft.sqlserver.jdbc.SQLServerDriver";
String url ="jdbc:sqlserver://localhost:1435;databaseName=supermarket";
String user ="sa";
String pass ="sql!123";

//connection
public Connection getConnection()
{
Connection con;
try {
Class.forName(driver);
con= DriverManager.getConnection(url, user, pass);
return con;
}catch (Exception e){
e.printStackTrace();
return null;
}

}
public ArrayList<Update_del_insert_products> getuserList()
{
ArrayList <Update_del_insert_products> proList =new ArrayList <Update_del_insert_products> ();
Connection connection =getConnection();

String query ="SELECT * FROM Product";
Statement st;
ResultSet rs;
try{
st = connection.createStatement();
rs = st.executeQuery(query);
Update_del_insert_products update_del_insert_products ;
while(rs.next())
{
update_del_insert_products = new Update_del_insert_products (rs.getString("Pro_Id"),rs.getString("Pro_Name"),rs.getString("Pro_Price"),rs.getString("Pro_Quantity"),rs.getString("Pro_Supplier_id"));
proList.add(update_del_insert_products);
}
}catch (Exception e){
e.printStackTrace();
}
return proList;
}

//display data in jtable
public void show_suppliers_in_Jtable(){
ArrayList<Update_del_insert_products> list= getuserList();
DefaultTableModel model =(DefaultTableModel)jTable_Products.getModel();
Object[] row =new Object[5];
for(int i =0;i< list.size();i++)
{
row[0] = list.get(i).getpro_Id();
row[1] = list.get(i).getpro_Name();
row[2] = list.get(i).getpro_Price();
row[3] = list.get(i).getpro_Quantity();
row[4] = list.get(i).getpro_Supplier_id();

model.addRow(row);
}
}

//execute the sql query REFRESH JTABLE
public void executeSQLQuery (String query,String message) {
Connection con =getConnection();
Statement st;
try{
st =con.createStatement();
if((st.executeUpdate(query))==1)
{
//refresh jtable data
DefaultTableModel model=(DefaultTableModel)jTable_Products.getModel();
model.setRowCount(0);
show_Products_in_Jtable();
JOptionPane.showMessageDialog(null,"Data "+message+" Succefully");
}else{
JOptionPane.showMessageDialog(null,"Data Not "+message+ "Error");
}

}catch (Exception ex){
ex.printStackTrace();
}
}

/**
*
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {

jPanel1 = new javax.swing.JPanel();
jLabel1 = new javax.swing.JLabel();
jLabel2 = new javax.swing.JLabel();
jLabel5 = new javax.swing.JLabel();
jLabel6 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
Pro_Name = new javax.swing.JTextField();
Pro_Price = new javax.swing.JTextField();
Pro_Quantity = new javax.swing.JTextField();
Pro_Supplier_id = new javax.swing.JTextField();
jScrollPane1 = new javax.swing.JScrollPane();
jTable_Products = new javax.swing.JTable();
Back = new javax.swing.JButton();
AddProduct = new javax.swing.JButton();
UptadeProduct = new javax.swing.JButton();
DeleteProduct = new javax.swing.JButton();
jLabel4 = new javax.swing.JLabel();
Pro_Id = new javax.swing.JTextField();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setResizable(false);

jLabel1.setFont(new java.awt.Font("Tahoma", 0, 18)); // NOI18N
jLabel1.setText("Products");

jLabel2.setFont(new java.awt.Font("Tahoma", 0, 14)); // NOI18N
jLabel2.setText("Name ");

jLabel5.setFont(new java.awt.Font("Tahoma", 0, 14)); // NOI18N
jLabel5.setText("Price");

jLabel6.setFont(new java.awt.Font("Tahoma", 0, 14)); // NOI18N
jLabel6.setText("Quantity");

jLabel3.setFont(new java.awt.Font("Tahoma", 0, 14)); // NOI18N
jLabel3.setText("Supplier_id");

Pro_Supplier_id.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
Pro_Supplier_idActionPerformed(evt);
}
});

jTable_Products.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {

},
new String [] {
"Name ", "Price", "Quantity", "Supplier_id"
}
));
jScrollPane1.setViewportView(jTable_Products);

Back.setText("Back");
Back.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
BackActionPerformed(evt);
}
});

AddProduct.setText("Add");
AddProduct.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
AddProductActionPerformed(evt);
}
});

UptadeProduct.setText("Update");
UptadeProduct.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
UptadeProductActionPerformed(evt);
}
});

DeleteProduct.setText("Delete");
DeleteProduct.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
DeleteProductActionPerformed(evt);
}
});

jLabel4.setFont(new java.awt.Font("Tahoma", 0, 14)); // NOI18N
jLabel4.setText("Id");

javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(187, 187, 187)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(Pro_Name, javax.swing.GroupLayout.PREFERRED_SIZE, 81, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(Pro_Price, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.PREFERRED_SIZE, 81, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 378, Short.MAX_VALUE)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 630, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(Back)))
.addGap(24, 24, 24))
.addGroup(jPanel1Layout.createSequentialGroup()
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(325, 325, 325)
.addComponent(jLabel1))
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(56, 56, 56)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jLabel6, javax.swing.GroupLayout.DEFAULT_SIZE, 80, Short.MAX_VALUE)
.addComponent(AddProduct, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jLabel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jLabel5, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(jLabel4, javax.swing.GroupLayout.PREFERRED_SIZE, 66, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel3)))
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(85, 85, 85)
.addComponent(UptadeProduct, javax.swing.GroupLayout.PREFERRED_SIZE, 80, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(97, 97, 97)
.addComponent(DeleteProduct, javax.swing.GroupLayout.PREFERRED_SIZE, 80, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(Pro_Id, javax.swing.GroupLayout.PREFERRED_SIZE, 81, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(Pro_Supplier_id, javax.swing.GroupLayout.PREFERRED_SIZE, 81, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(Pro_Quantity, javax.swing.GroupLayout.PREFERRED_SIZE, 81, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGap(210, 210, 210)))))
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel1)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addGap(44, 44, 44)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(Pro_Name, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel2))
.addGap(18, 18, 18)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(Pro_Price, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(Pro_Quantity, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel1Layout.createSequentialGroup()
.addComponent(jLabel5)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jLabel6)))
.addGap(22, 22, 22)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
.addComponent(Pro_Supplier_id, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel3))
.addGap(28, 28, 28)
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jLabel4)
.addComponent(Pro_Id, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
.addGap(0, 34, Short.MAX_VALUE)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 234, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 83, Short.MAX_VALUE)))
.addGroup(jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(AddProduct, javax.swing.GroupLayout.PREFERRED_SIZE, 36, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(DeleteProduct, javax.swing.GroupLayout.PREFERRED_SIZE, 36, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(UptadeProduct, javax.swing.GroupLayout.PREFERRED_SIZE, 35, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(14, 14, 14)
.addComponent(Back)
.addContainerGap())
);

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);

pack();
}// </editor-fold>

private void BackActionPerformed(java.awt.event.ActionEvent evt) {
Pback();
}

private void Pro_Supplier_idActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

private void AddProductActionPerformed(java.awt.event.ActionEvent evt) {
String query="INSERT INTO Products(Pro_Id ,Pro_Name,Pro_Price,Pro_Quantity,Pro_Supplier_id)VALUES ('"+Pro_Id.getText()+" ','"+Pro_Name.getText()+" ','"+Pro_Price.getText()+" ','"+Pro_Quantity.getText()+" ','"+Pro_Supplier_id.getText()+" ') ";
executeSQLQuery(query,"Inserted");
// KATAXORI STON PINAKA Suppliers ta stoixeia meso ths update_del_insert kai ta emfanizei sto text stis antoistixes theseis
}

private void UptadeProductActionPerformed(java.awt.event.ActionEvent evt) {
String query ="UPDATE Products SET Pro_Name ='"+Pro_Id.getText()+" ' ,'"+Pro_Name.getText()+" ' ,Pro_Price = '"+Pro_Price.getText()+" ' ,Pro_Quantity = '"+Pro_Quantity.getText()+" ' ,Pro_Supplier_id = '"+Pro_Supplier_id.getText()+" ') ";
executeSQLQuery(query,"Updated");
// ananeonei STON PINAKA Suppliers ta stoixeia meso ths update_del_insert
}

private void DeleteProductActionPerformed(java.awt.event.ActionEvent evt) {
String query ="DELETE FROM Products WHERE Pro_Id ="+Pro_Id.getText();
// NA BALO NA KANEI ELENXO DIAGRAFEIS
executeSQLQuery(query,"Deleted");
}
private void jtable_ProductsMouseClicked(java.awt.event.MouseEvent evt) {
// Display selected Row In JtextFields ston pinaka mas
int i =jTable_Products.getSelectedRow();
TableModel model =jTable_Products.getModel();
Pro_Id.setText((String) model.getValueAt(i,0));
Pro_Name.setText(model.getValueAt(i,1).toString());
Pro_Price.setText(model.getValueAt(i,2).toString());
Pro_Quantity.setText(model.getValueAt(i,3).toString());
Pro_Supplier_id.setText(model.getValueAt(i,4).toString());
}
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Set the Nimbus look and feel */
//<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
/* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
* For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
*/
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Products.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Products.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Products.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Products.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>

/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Products().setVisible(true);
}
});
}

// Variables declaration - do not modify
private javax.swing.JButton AddProduct;
private javax.swing.JButton Back;
private javax.swing.JButton DeleteProduct;
private javax.swing.JTextField Pro_Id;
private javax.swing.JTextField Pro_Name;
private javax.swing.JTextField Pro_Price;
private javax.swing.JTextField Pro_Quantity;
private javax.swing.JTextField Pro_Supplier_id;
private javax.swing.JButton UptadeProduct;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JLabel jLabel4;
private javax.swing.JLabel jLabel5;
private javax.swing.JLabel jLabel6;
private javax.swing.JPanel jPanel1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTable jTable_Products;
// End of variables declaration

private void Pback() {
Console c=new Console ();
c.setVisible(true);
WindowEvent winClosing = new WindowEvent(this, WindowEvent.WINDOW_CLOSING);
Toolkit.getDefaultToolkit().getSystemEventQueue().postEvent(winClosing);
}

private void show_Products_in_Jtable() {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}

private static class Arraylist<T> {
public Arraylist() {
}
}
}


I cant run it and keep saying this i have no idea how to fix this cause iam new in java any help ? ty

Exception in thread "AWT-EventQueue-0" java.lang.UnsupportedOperationException: Not supported yet.
at mylogin.Products.show_Products_in_Jtable(Products.java:436)
at mylogin.Products.<init>(Products.java:31)
at mylogin.Products$6.run(Products.java:398)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

Answer

You get this exception because of this:

private void show_Products_in_Jtable() {
    throw new UnsupportedOperationException("Not supported yet.");
}

You call this method explicitly in the constructor of Products that is why you get this exception, implement this method properly and you won't have this issue anymore.

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