JAVA #30 – Frist GUI Application In Java

// Project Name FirstGUIApp and JFrame Form Name frmMain
/*
 * 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 firstguiapp;

import javax.swing.JOptionPane;

/**
 *
 * @author faheem
 */
public class frmMain extends javax.swing.JFrame {
    
    int[] arrInt = new int[1000];
    int count = 0;
    int Min,Max;    
       
    
    public frmMain() {
        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() {

        lblNumber = new javax.swing.JLabel();
        txtNumber = new javax.swing.JTextField();
        btnEnter = new javax.swing.JButton();
        jScrollPane1 = new javax.swing.JScrollPane();
        TextAreaVal = new javax.swing.JTextArea();
        btnMinMax = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("First GUI Java App");

        lblNumber.setText("Enter NO:");

        btnEnter.setText("Entered");
        btnEnter.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnEnterActionPerformed(evt);
            }
        });

        TextAreaVal.setColumns(20);
        TextAreaVal.setRows(5);
        jScrollPane1.setViewportView(TextAreaVal);

        btnMinMax.setText("Get Min And Max Values");
        btnMinMax.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                btnMinMaxActionPerformed(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()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                    .addComponent(jScrollPane1)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(lblNumber)
                        .addGap(18, 18, 18)
                        .addComponent(txtNumber, javax.swing.GroupLayout.PREFERRED_SIZE, 151, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(18, 18, 18)
                        .addComponent(btnEnter))
                    .addComponent(btnMinMax, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(lblNumber)
                    .addComponent(txtNumber, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(btnEnter))
                .addGap(18, 18, 18)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 104, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(18, 18, 18)
                .addComponent(btnMinMax, javax.swing.GroupLayout.DEFAULT_SIZE, 42, Short.MAX_VALUE)
                .addContainerGap())
        );

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

    private void btnEnterActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnEnterActionPerformed
        arrInt[count] = Integer.parseInt(txtNumber.getText().toString());
        count++;
        TextAreaVal.append(txtNumber.getText().toString()+"\n");
        txtNumber.setText("");
    }//GEN-LAST:event_btnEnterActionPerformed

    private void btnMinMaxActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnMinMaxActionPerformed
        Max = arrInt[0];
        for (int j = 0; j < count; j++) {
            if (Max < arrInt[j]) {                
                Max = arrInt[j];  
            }
        }
        Min = arrInt[0];
        for (int i = 0; i < count; i++) {
            if (Min > arrInt[i]) {                
                Min = arrInt[i];  
            }
        }
                 
        
        JOptionPane.showMessageDialog(this, "The Min Value Is: "+Min);
        JOptionPane.showMessageDialog(this, "The Max Value Is: "+Max);        
    }//GEN-LAST:event_btnMinMaxActionPerformed

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

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JTextArea TextAreaVal;
    private javax.swing.JButton btnEnter;
    private javax.swing.JButton btnMinMax;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JLabel lblNumber;
    private javax.swing.JTextField txtNumber;
    // End of variables declaration//GEN-END:variables
}