Java tutorial
import com.mongodb.*; import java.net.UnknownHostException; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JOptionPane; /* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ /** * * @author aseem */ public class DeleteRecord extends javax.swing.JFrame { /** * Creates new form DeleteRecord */ public DeleteRecord() { initComponents(); } /** * 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">//GEN-BEGIN:initComponents private void initComponents() { jButton1 = new javax.swing.JButton(); jButton2 = new javax.swing.JButton(); jLabel1 = new javax.swing.JLabel(); jTextField1 = new javax.swing.JTextField(); jLabel2 = new javax.swing.JLabel(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jButton1.setText("Delete"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jButton2.setText("Back"); jButton2.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton2ActionPerformed(evt); } }); jLabel1.setText("Movie ID"); jLabel2.setIcon(new javax.swing.ImageIcon(getClass().getResource("/cooltext136832546263652.png"))); // NOI18N javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING) .addGroup(layout.createSequentialGroup().addGap(352, 352, 352) .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 77, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 232, Short.MAX_VALUE) .addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout .createSequentialGroup().addGap(122, 122, 122) .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 93, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addComponent(jTextField1))) .addGap(85, 85, 85)) .addGroup(layout.createSequentialGroup().addGap(310, 310, 310).addComponent(jLabel2) .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))); layout.setVerticalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING).addGroup( javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup().addGap(65, 65, 65) .addComponent(jLabel2, javax.swing.GroupLayout.PREFERRED_SIZE, 39, javax.swing.GroupLayout.PREFERRED_SIZE) .addGap(63, 63, 63) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 29, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 118, Short.MAX_VALUE) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jButton1).addComponent(jButton2)) .addGap(76, 76, 76))); pack(); }// </editor-fold>//GEN-END:initComponents private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed // TODO add your handling code here: new AdminLogin().setVisible(true); dispose(); }//GEN-LAST:event_jButton2ActionPerformed private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed // TODO add your handling code here: MongoClient mongoClient; try { mongoClient = new MongoClient("localhost", 27017); DB db = mongoClient.getDB("Classic_Hangman"); System.out.println("Connected to database successfully!!"); BasicDBObject doc = new BasicDBObject(); DBCollection coll = db.getCollection("movies"); DBCollection coll1 = db.getCollection("counter"); System.out.println("Collection selected successfully"); DBObject c = coll1.findOne(); int count = ((Number) c.get("count")).intValue(); int del_id = Integer.parseInt(jTextField1.getText()); doc.put("id", del_id); coll.remove(doc); for (int i = del_id + 1; i <= count; i++) { BasicDBObject newDocument = new BasicDBObject(); newDocument.append("$set", new BasicDBObject().append("id", i - 1)); BasicDBObject searchQuery = new BasicDBObject().append("id", i); coll.update(searchQuery, newDocument); } count--; coll1.remove(new BasicDBObject()); BasicDBObject doc1 = new BasicDBObject("count", count); coll1.insert(doc1); JOptionPane.showMessageDialog(this, "Record deleted!"); } catch (UnknownHostException ex) { Logger.getLogger(AdminLogin.class.getName()).log(Level.SEVERE, null, ex); } }//GEN-LAST:event_jButton1ActionPerformed /** * @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(DeleteRecord.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger.getLogger(DeleteRecord.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger.getLogger(DeleteRecord.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger.getLogger(DeleteRecord.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 DeleteRecord().setVisible(true); } }); } // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JButton jButton1; private javax.swing.JButton jButton2; private javax.swing.JLabel jLabel1; private javax.swing.JLabel jLabel2; private javax.swing.JTextField jTextField1; // End of variables declaration//GEN-END:variables }