returnbook.java

/*
 * 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.
 */

package project;

import java.awt.Toolkit;
import java.awt.event.WindowEvent;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JOptionPane;

/**
 *
 * @author akkii
 */
public class returnbook extends javax.swing.JFrame {
    Connection con=null;
    /** Creates new form returnbook */
    public returnbook() {
        try {
            initComponents();
            con=connection.connector();
        } catch (SQLException ex) {
            Logger.getLogger(returnbook.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
    public void close(){
        WindowEvent winclosingEvent=new WindowEvent(this,WindowEvent.WINDOW_CLOSING);
        Toolkit.getDefaultToolkit().getSystemEventQueue().postEvent(winclosingEvent);  
    }

    /** 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() {

        jLabel1 = new javax.swing.JLabel();
        ret = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jLabel2 = new javax.swing.JLabel();
        clno = new javax.swing.JTextField();
        id = new javax.swing.JTextField();
        jLabel3 = new javax.swing.JLabel();
        war = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        setBackground(new java.awt.Color(102, 204, 255));

        jLabel1.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N
        jLabel1.setText("Book Callno:");

        ret.setFont(new java.awt.Font("Tahoma", 1, 14)); // NOI18N
        ret.setForeground(new java.awt.Color(0, 0, 102));
        ret.setText("Return Book");
        ret.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                retActionPerformed(evt);
            }
        });

        jButton2.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N
        jButton2.setText("Back");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        jLabel2.setFont(new java.awt.Font("Tahoma", 1, 12)); // NOI18N
        jLabel2.setText("Student id:");

        id.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                idMouseClicked(evt);
            }
        });

        war.setFont(new java.awt.Font("Tahoma", 0, 12)); // NOI18N
        war.setForeground(new java.awt.Color(204, 51, 0));

        jLabel4.setFont(new java.awt.Font("Wide Latin", 1, 24)); // NOI18N
        jLabel4.setForeground(new java.awt.Color(153, 153, 153));
        jLabel4.setText("Return Books");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(40, 40, 40)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addGroup(layout.createSequentialGroup()
                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                    .addComponent(jLabel1)
                                    .addComponent(jLabel2))
                                .addGap(57, 57, 57)
                                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                                    .addComponent(id, javax.swing.GroupLayout.DEFAULT_SIZE, 132, Short.MAX_VALUE)
                                    .addComponent(clno)))
                            .addComponent(jLabel4, javax.swing.GroupLayout.PREFERRED_SIZE, 329, javax.swing.GroupLayout.PREFERRED_SIZE)))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(111, 111, 111)
                        .addComponent(ret, javax.swing.GroupLayout.PREFERRED_SIZE, 130, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(layout.createSequentialGroup()
                        .addGap(28, 28, 28)
                        .addComponent(jLabel3, javax.swing.GroupLayout.PREFERRED_SIZE, 317, javax.swing.GroupLayout.PREFERRED_SIZE)))
                .addContainerGap(31, Short.MAX_VALUE))
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(war, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addGroup(layout.createSequentialGroup()
                        .addGap(0, 0, Short.MAX_VALUE)
                        .addComponent(jButton2)))
                .addGap(70, 70, 70))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel4, javax.swing.GroupLayout.PREFERRED_SIZE, 29, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel1)
                    .addComponent(clno, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(id, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(42, 42, 42)
                .addComponent(ret, javax.swing.GroupLayout.PREFERRED_SIZE, 31, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(45, 45, 45)
                .addComponent(jButton2)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(war, javax.swing.GroupLayout.PREFERRED_SIZE, 21, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jLabel3)
                .addGap(0, 0, 0))
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed
       section a=new section();
                 close();
                 a.setVisible(true);
    }//GEN-LAST:event_jButton2ActionPerformed

    private void retActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_retActionPerformed
        String t=String.format("select studentid from issue where bookcallno='%s'",clno.getText());
         PreparedStatement st=null;
        try {
            st=con.prepareStatement(t);
            ResultSet rs=st.executeQuery();
            if(rs.next()){
                String u=rs.getString(1);
                if(u.equals(id.getText())){
                 String y=String.format("select quantity,issued from books where callno='%s'",clno.getText()); 
                 PreparedStatement q=null;
                 q=con.prepareStatement(y);
                 ResultSet s=q.executeQuery();
                 if(s.next()){
                     int m=s.getInt(1);
                     int z=s.getInt(2);
                     System.out.println("runned"+m +"" +z);
                     m++;
                     z--;
                      String j=String.format("update  books set quantity=%d,issued=%d where callno='%s'",m,z,clno.getText());
                      PreparedStatement g=null;
                  g=con.prepareStatement(j);
                  g.executeUpdate();
                  String o=String.format("delete from issue where bookcallno='%s'",clno.getText());
                PreparedStatement pst=null;
                pst=con.prepareStatement(o);
                int x=pst.executeUpdate();
                if(x>0){
                    JOptionPane.showMessageDialog(null,"book returned succesfully");
                }
                }
           }
                else{
                    JOptionPane.showMessageDialog(null,"check student id");
                }
           }
            else{
                JOptionPane.showMessageDialog(null,"book not found");
            }
        } catch (SQLException ex) {
            Logger.getLogger(Issuebooks.class.getName()).log(Level.SEVERE, null, ex);
        }
    }//GEN-LAST:event_retActionPerformed

    private void idMouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_idMouseClicked
            war.setText("please check student id carefully");
    }//GEN-LAST:event_idMouseClicked

    /**
     * @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(returnbook.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(returnbook.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(returnbook.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(returnbook.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 returnbook().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JTextField clno;
    private javax.swing.JTextField id;
    private javax.swing.JButton jButton2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JButton ret;
    private javax.swing.JLabel war;
    // End of variables declaration//GEN-END:variables

}