DisplayImage.java

import javax.swing.ImageIcon;
import java.sql.Connection;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JOptionPane;
public class DisplayImage extends javax.swing.JFrame {

    /**
     * Creates new form DisplayImage
     */
    public DisplayImage() {
        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() {

        field = new javax.swing.JTextField();
        button = new javax.swing.JButton();
        imagelevel = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        field.setFont(new java.awt.Font("Segoe UI", 1, 18)); // NOI18N

        button.setBackground(new java.awt.Color(255, 102, 0));
        button.setFont(new java.awt.Font("Segoe UI", 1, 18)); // NOI18N
        button.setText("Show Image");
        button.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                buttonActionPerformed(evt);
            }
        });

        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.TRAILING)
                    .addGroup(layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(imagelevel, javax.swing.GroupLayout.PREFERRED_SIZE, 341, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(javax.swing.GroupLayout.Alignment.LEADING, layout.createSequentialGroup()
                        .addGap(35, 35, 35)
                        .addComponent(field, javax.swing.GroupLayout.PREFERRED_SIZE, 180, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(35, 35, 35)
                        .addComponent(button)))
                .addContainerGap(112, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(150, 150, 150)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(field, javax.swing.GroupLayout.PREFERRED_SIZE, 62, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(button, javax.swing.GroupLayout.PREFERRED_SIZE, 62, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(46, 46, 46)
                .addComponent(imagelevel, javax.swing.GroupLayout.PREFERRED_SIZE, 242, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(22, Short.MAX_VALUE))
        );

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

    //show images
    private void buttonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_buttonActionPerformed
        try {
            // TODO add your handling code here:
            String str=field.getText();
            int id=Integer.parseInt(str);
            ImageIcon icon=DisplayHelper.getImageIconById(id,UtilityClass.connect());
            if(icon==null)
            {
                 JOptionPane.showMessageDialog(null, "no image found of your id!");
           
            }
            imagelevel.setIcon(icon);
        } catch (Exception ex) {
            Logger.getLogger(DisplayImage.class.getName()).log(Level.SEVERE, null, ex);
        }
    }//GEN-LAST:event_buttonActionPerformed

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

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton button;
    private javax.swing.JTextField field;
    private javax.swing.JLabel imagelevel;
    // End of variables declaration//GEN-END:variables
}