(Solved) : 51 Exercises Include Completed Java Files Zip Archive Submit Grading Complete Code Provide Q26356770 . . .
5.1 For these exercises, include your completed.java files in the zip archive that you submit for grading.Complete the code in the provided View class to implementthis GUI interface for a calculator. The calculator does not haveto be fully functional; the primary objective of the assignment isto implement the GUI.
CODE PROVIDED IN VIEW CLASS:
//**************************************************************************************************
// CLASS: View
//
// DESCRIPTION
// Implements the GUI for a calculator.
//**************************************************************************************************
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
/**
* Implements the GUI for a calculator.
*/
public class View extends JFrame implements ActionListener {
public static final int FRAME_WIDTH = 500;
public static final int FRAME_HEIGHT = 200;
private JTextField mText;
/**
* Default ctor. Does nothing.
*/
public View() {
// Declare and create a JPanel named panelFunctButton. Set thelayout manager to GridLayout
// with 2 rows and 2 columns. Call addButton() to add buttonslabeled “x^y”, “log 10”,
// “log e”, and “sqrt”.
???
// Declare and create a JPanel named panelSysButton. Use thedefault FlowLayout layout
// manager. Call addButton() to add buttons labeled “Clear”,”About”, and “Exit”.
???
// Declare and create a JPanel named panelFunctSys. Use theBorderLayout layout manager.
// Add panelFunctButton to the CENTER region. Add panelSysButton tothe SOUTH region.
???
// Declare and create a JPanel named panelKeypad. Use theGridLayout layout manager with
// 4 rows and 4 columns. Call addButton() to add the buttonslabeled “7”, “8”, “9”, and so
// on.
???
// Declare and create a new JPanel named panelBottom. Use thevertical BoxLayout layout
// manager. Add panelKeypad. Add a 10-pixel wide rigid area (usingBox.createRigidArea()).
// Add panelFunctSys.
???
// Declare and create a JPanel named panelTextField. Use thedefault FlowLayout layout
// manager. Create the mText JTextField making it 30 columns wide.Add mText to the
// panelTextField panel.
???
// Declare and create a JPanel named panelLabel. Use the defaultFlowLayout layout manager.
// Declare and create a JLabel named label displaying”Kalkutron-9000″ or whatever you
// want to display. Add label to panelLabel.
???
// Declare and create a JPanel named panelMain. Use thehorizontal BoxLayout layout manager.
// Add some vertical glue to panelMain (usingBox.createVerticalGlue()). Add panelLabel.
// Add some more vertical glue. Add panelTextField. AddpanelBottom. Add some more vertical
// glue.
???
// Set the title bar string of this JFrame.
setTitle(“Kalkutron-9000”);
// Set the width and height of this JFrame.
setSize(FRAME_WIDTH, FRAME_HEIGHT);
// Configure this JFrame so the frame will be closed and theapplication were terminate when
// the X button on the title bar is closed.
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// Add panelMain to this JFrame.
add(panelMain);
// Make this JFrame visible.
setVisible(true);
}
/**
* Declare and create a JButton object displaying pText. Make thisJFrame the action listener
* for button events. Add the button to pPanel.
*/
private void addButton(JPanel pPanel, String pText) {
JButton button = new JButton(pText);
button.addActionListener(this);
pPanel.add(button);
}
/**
* Implementation of the actionPerformed() method of theActionListener interface.
*/
@Override
public void actionPerformed(ActionEvent pEvent) {
// If the source of the event is a JButton, callingpEvent.getActionCommand() will return
// the text displayed on the button face. For example, when theExit button is clicked,
// pEvent.getActionCommand() would return “Exit”.
// Write code that determines if the Exit button is the sourceof the event and if so,
// exit the application by calling System.exit().
???
// Write code that determines if the About button is the sourceof the event and if so,
// display the about dialog usingJOptionPane.showMessageDialog().
???
}
}
5.2 Complete the code inactionPerformed() so when the Exit button is clicked, theapplication will terminate.
5.3 Complete the code inactionPerformed() so when the About button is clicked, theapplication will display this about
dialog:
6 Nested Classes
6.1 Explain what an inner class is.
6.2 Explain how a local class differs from aninner class.
6.3 Explain how an anonymous class differs froman inner and local class.
3.16 In a subclass constructor, the superclassdefault constructor is called automatically before the statementsof the subclass constructor begin executing. Suppose we wish tocall a different superclass constructor (i.e., not the defaultconstructor) from the subclass constructor. Explain how this isaccomplished and give an example.
3.17 Explain how an abstract class differs froma concrete class.
Kalkutron-9000 Kalkutron-9000 7 4 3 0 8 5 2 9 log 10 6 log e sqrt Clear About Exit Show transcribed image text
Expert Answer
Answer to 51 Exercises Include Completed Java Files Zip Archive Submit Grading Complete Code Provide Q26356770 . . .
OR