Can you please explain in detail every line of code and explain the output as we

Question

Can you please explain in detail every line of code and explain the output as well even though you think it is simple.

Thank you

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import javax.swing.border.*;

public class pbord extends JApplet implements ActionListener

{

JLabel label1 = new JLabel("Label 1");

JLabel label2 = new JLabel("Label 2");

JLabel label3 = new JLabel("Label 3");

JLabel label4 = new JLabel("Label 4");

JMenuBar bar = new JMenuBar();

JMenu menu = new JMenu("Format Borders");

JMenuItem line = new JMenuItem("Line Button");

JMenuItem empty = new JMenuItem("Empty Button");

JMenuItem etched = new JMenuItem("Etched Button");

JMenuItem bevel = new JMenuItem("Bevel Button");

Container c;

public void init()

{

setSize(500, 200);

c = getContentPane();

c.setLayout(new FlowLayout());

c.setBackground(Color.cyan);

setJMenuBar(bar);

menu.setForeground(Color.green);

line.setForeground(Color.green);

menu.add(line);

empty.setForeground(Color.green);

menu.add(empty);

etched.setForeground(Color.green);

menu.add(etched);

bevel.setForeground(Color.green);

menu.add(bevel);

bar.add(menu);

label1.setForeground(Color.red);

c.add(label1);

label2.setForeground(Color.red);

c.add(label2);

label3.setForeground(Color.red);

c.add(label3);

label4.setForeground(Color.red);

c.add(label4);

line.addActionListener(this);

empty.addActionListener(this);

etched.addActionListener(this);

bevel.addActionListener(this);

}

public void actionPerformed(ActionEvent e)

{

if (e.getSource() == line)

label1.setBorder(new LineBorder(Color.blue, 20));

else if (e.getSource() == empty)

label2.setBorder(new EmptyBorder(10, 10, 10, 10));

else if (e.getSource() == etched)

label3.setBorder(new EtchedBorder(EtchedBorder.RAISED));

else if (e.getSource() == bevel)

label4.setBorder(new BevelBorder(BevelBorder.LOWERED));

}

}

Explanation / Answer

import java.awt.*; // initial commands

import java.awt.event.*;

import javax.swing.*;

import javax.swing.border.*;

public class pbord extends JApplet implements ActionListener ////starting domain

{

JLabel label1 = new JLabel("Label 1"); //creating new locations

JLabel label2 = new JLabel("Label 2");

JLabel label3 = new JLabel("Label 3");

JLabel label4 = new JLabel("Label 4");

JMenuBar bar = new JMenuBar(); //initializing new bar

JMenu menu = new JMenu("Format Borders"); //introducing content to menu

JMenuItem line = new JMenuItem("Line Button"); //introducing line button to menu

JMenuItem empty = new JMenuItem("Empty Button");     //introducing empty button to menu

JMenuItem etched = new JMenuItem("Etched Button");   //introducing Etched button to menu

JMenuItem bevel = new JMenuItem("Bevel Button");   //introducing Bevel button to menu

Container c; // ending with c

public void init() // initial statements

{

setSize(500, 200); /// initializing variable

c = getContentPane(); //taking values from variable

c.setLayout(new FlowLayout()); /// setting layout

c.setBackground(Color.cyan);

setJMenuBar(bar); /// setting again menu

menu.setForeground(Color. green); /// setting color

line.setForeground(Color. green);

menu.add(line); //adding another menu

empty.setForeground(Color. green); //setting for color of foreground

menu.add(empty); ///creating space

etched.setForeground(Color. green);

menu.add(etched); ///adding etched

bevel.setForeground(Color. green);

menu.add(bevel);//adding bevel

bar.add(menu); .////creating menu for bar

label1.setForeground(Color. red); ///// setting color for foreground

c.add(label1);

label2.setForeground(Color. red); ///// setting color for foreground

c.add(label2);

label3.setForeground(Color. red);   ///// setting color for foreground

c.add(label3);

label4.setForeground(Color. red);   ///// setting color for foreground

c.add(label4);

line.addActionListener(this); //putting values to variable action listener

empty.addActionListener(this);   //putting values to variable action listener

etched.addActionListener(this) ;   //putting values to variable action listener

bevel.addActionListener(this); //putting values to variable action listener

}

public void actionPerformed(ActionEvent e) //setting performance

{

if (e.getSource() == line) //condition

label1.setBorder(new LineBorder(Color.blue, 20)); ///designing

else if (e.getSource() == empty) ///else condition

label2.setBorder(new EmptyBorder(10, 10, 10, 10)); ///designing

else if (e.getSource() == etched)

label3.setBorder(new EtchedBorder(EtchedBorder. RAISED)); ///designing

else if (e.getSource() == bevel) //switing statements

label4.setBorder(new BevelBorder(BevelBorder. LOWERED));    ///designing

}

}

'

thanks

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