Answered! Implement a Java GUI application that prompts the user for the list of integers delimited by commas and a…

package binarySearch.GUI;

import java.awt.BorderLayout;

import java.awt.EventQueue;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.border.EmptyBorder;

import javax.swing.BoxLayout;

import javax.swing.JLabel;

import javax.swing.JOptionPane;

import java.awt.GridLayout;

import java.awt.FlowLayout;

import java.awt.GridBagLayout;

import java.awt.GridBagConstraints;

import java.awt.Insets;

import javax.swing.JTextField;

import java.awt.Font;

import javax.swing.JButton;

import java.awt.Color;

import javax.swing.border.EtchedBorder;

import javax.swing.border.LineBorder;

import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;

import java.awt.event.KeyAdapter;

import java.awt.event.KeyEvent;

public class BinarySearch extends JFrame {

private static JTextField tf_numbers;

private JTextField tf_num;

/**

* Launch the application.

*/

public static void main(String[] args) {

EventQueue.invokeLater(new Runnable() {

public void run() {

try {

BinarySearch frame = new BinarySearch();

frame.setVisible(true);

} catch (Exception e) {

e.printStackTrace();

}

}

});

}

/**

* Create the frame.

*/

public BinarySearch() {

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setBounds(100, 100, 450, 264);

GridBagLayout gridBagLayout = new GridBagLayout();

gridBagLayout.columnWidths = new int[]{193, 38, 0, 0, 0, 0, 0};

gridBagLayout.rowHeights = new int[]{0, 0, 0, 0, 0, 0, 0};

gridBagLayout.columnWeights = new double[]{1.0, 1.0, 0.0, 0.0, 0.0, 0.0, Double.MIN_VALUE};

gridBagLayout.rowWeights = new double[]{0.0, 0.0, 0.0, 0.0, 0.0, 1.0, Double.MIN_VALUE};

getContentPane().setLayout(gridBagLayout);

JLabel lblNewLabel = new JLabel(“Specify the list of numbers for binary search, delimited by commas:”);

lblNewLabel.setFont(new Font(“Tahoma”, Font.PLAIN, 13));

GridBagConstraints gbc_lblNewLabel = new GridBagConstraints();

gbc_lblNewLabel.anchor = GridBagConstraints.WEST;

gbc_lblNewLabel.gridwidth = 6;

gbc_lblNewLabel.insets = new Insets(0, 0, 5, 0);

gbc_lblNewLabel.gridx = 0;

gbc_lblNewLabel.gridy = 0;

getContentPane().add(lblNewLabel, gbc_lblNewLabel);

tf_numbers = new JTextField();

tf_numbers.addKeyListener(new KeyAdapter() {

@Override

public void keyTyped(KeyEvent arg0) { // input validation to accept only numbers, comma and space

char ch = arg0.getKeyChar();

if(ch==’ ‘ || ch==’,’|| isNum(ch))

{

}

else

arg0.consume();

}

});

GridBagConstraints gbc_tf_numbers = new GridBagConstraints();

gbc_tf_numbers.insets = new Insets(0, 0, 5, 0);

gbc_tf_numbers.gridwidth = 6;

gbc_tf_numbers.fill = GridBagConstraints.HORIZONTAL;

gbc_tf_numbers.gridx = 0;

gbc_tf_numbers.gridy = 1;

getContentPane().add(tf_numbers, gbc_tf_numbers);

tf_numbers.setColumns(10);

JLabel lblNewLabel_1 = new JLabel(“Specify number to search:”);

lblNewLabel_1.setFont(new Font(“Tahoma”, Font.PLAIN, 13));

GridBagConstraints gbc_lblNewLabel_1 = new GridBagConstraints();

gbc_lblNewLabel_1.fill = GridBagConstraints.HORIZONTAL;

gbc_lblNewLabel_1.insets = new Insets(0, 0, 5, 5);

gbc_lblNewLabel_1.gridx = 0;

gbc_lblNewLabel_1.gridy = 2;

getContentPane().add(lblNewLabel_1, gbc_lblNewLabel_1);

tf_num = new JTextField();

GridBagConstraints gbc_tf_num = new GridBagConstraints();

gbc_tf_num.insets = new Insets(0, 0, 5, 0);

gbc_tf_num.fill = GridBagConstraints.HORIZONTAL;

gbc_tf_num.gridwidth = 5;

gbc_tf_num.gridx = 1;

gbc_tf_num.gridy = 2;

getContentPane().add(tf_num, gbc_tf_num);

tf_num.setColumns(10);

JButton search_btn = new JButton(“Search”);

GridBagConstraints gbc_search_btn = new GridBagConstraints();

gbc_search_btn.insets = new Insets(0, 0, 5, 0);

gbc_search_btn.gridx = 5;

gbc_search_btn.gridy = 3;

getContentPane().add(search_btn, gbc_search_btn);

tf_numbers.requestFocusInWindow();

JPanel panel = new JPanel();

panel.setBorder(new LineBorder(new Color(0, 0, 0)));

GridBagConstraints gbc_panel = new GridBagConstraints();

gbc_panel.gridwidth = 6;

gbc_panel.insets = new Insets(0, 0, 0, 5);

gbc_panel.fill = GridBagConstraints.BOTH;

gbc_panel.gridx = 0;

gbc_panel.gridy = 5;

getContentPane().add(panel, gbc_panel);

GridBagLayout gbl_panel = new GridBagLayout();

gbl_panel.columnWidths = new int[]{0, 0};

gbl_panel.rowHeights = new int[]{0, 0};

gbl_panel.columnWeights = new double[]{1.0, Double.MIN_VALUE};

gbl_panel.rowWeights = new double[]{1.0, Double.MIN_VALUE};

panel.setLayout(gbl_panel);

JLabel lbl_result = new JLabel(” “);

GridBagConstraints gbc_lbl_result = new GridBagConstraints();

gbc_lbl_result.fill = GridBagConstraints.VERTICAL;

gbc_lbl_result.anchor = GridBagConstraints.WEST;

gbc_lbl_result.gridx = 0;

gbc_lbl_result.gridy = 0;

panel.add(lbl_result, gbc_lbl_result);

search_btn.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent arg0) {

String st = tf_numbers.getText();

String[] numArray = st.split(“,”);

int len = numArray.length;

int[] array = new int[len];

for(int i=0; i<len; i++){

try{

array[i] = Integer.parseInt(numArray[i].trim());

System.out.println(“ANYUJ: “+array[i]);

}

catch(NumberFormatException ex)

{

}

}

int flag = 0;

int num = 0;

try{

num = Integer.parseInt(tf_num.getText());

flag = 0;

}

catch(NumberFormatException ex)

{

JOptionPane.showMessageDialog(null, “Please input a valid number”, “Error”, JOptionPane.ERROR_MESSAGE);

flag = 1;

}

if(flag == 0){

int found = binarySearch(array, num);

if(found == -1)

lbl_result.setText(String.valueOf(num)+” was not found”);

else

lbl_result.setText(String.valueOf(num)+” was found at postion “+String.valueOf(found));

}

}

});

}

private static boolean isNum(char chr)

{

return chr >= ‘0’ && chr <= ‘9’;

}

// Binary Search method

private static int binarySearch(int[] array, int num)

{

int first = 0;

int last = array.length-1;

 

 

while(first <= last)

{

int middle = first + (last – first) / 2;

if(array[middle] < num)

{

first = middle+1;

}

else if(array[middle] > num)

{

last = middle – 1;

}

else

{

return middle+1;

 

}

 

}

return -1;

}

}

DIRECTIONS: Open your java ide create a new java project with package name binarySearch.GUI and within that package create a new class named BinarySearch and then copy-paste the above code into the file and run.

OUTPUT