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TSAssn5.java:197: illegal start of expression
private void clearClientArea(){
^
TSAssn5.java:253: ';' expected
}//end main
^
TSAssn5.java:254: '}' expected
}//end class
^
3 errors
[color=#339999]/*
TS NU Grades GUI Interface Assignment 5
*/
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
//#1 Implement event proceesing
public class TSNUGrades extends JFrame implements ActionListener{
private JTextArea frameTextArea; //create a text area
private Container frameContainer; //for the content pane
private JScrollPane scrollForTextArea; //scroll bar
private BorderLayout frameLayout; //default
final int width = 640, height = 480; //Standard size
//#2 New attributes for data processing
// and status bar
private JLabel statusBar;
private int addedNumber;
private JMenuBar bar;
private JMenu fileMenu, editMenu, helpMenu;
private JMenuItem exitApp, clearText, displayText, addText,
aboutThisApp;
// Constructor
public TSNUGrades(String title){
//Call to JFrame constructor
super(title);
//Call initialization
init();
}
public void init(){
//Use the TSAssn5WindowCloser Class
addTSAssn5WindowListener(new TSAssn5WindowCloser(this));
//Set up the Window for the operating system
setLookAndFeel();
//Get the content pane
frameContainer = getContentPane();
//Create an instance ofa JTextArea
frameTextArea = new JTextArea("",
18, 70);
frameTextArea.setEditable(true);
frameTextArea.setLineWrap(true);
//Set the text area in the scroll pane
scrollForTextArea = new JScrollPane(frameTextArea);
//Create an instance of a border layout
frameLayout = new BorderLayout();
frameContainer.setLayout(frameLayout);
//#3 Add the status bar (JLabel)
frameContainer.add(scrollForTextArea, BorderLayout.CENTER);
//create a label to use as a status bar
statusBar = new JLabel(" ");
frameContainer.add(statusBar, BorderLayout.SOUTH);
setSize(height, width);
makeMenu();
//#4 Postition the window in the center of the desktop
positionWindow();
pack();
setVisible(true);
}
//----------------------------setLookAndFeel()----------------------
//Set the look and feel for the application
public void setLookAndFeel(){
try{
String lookAndFeel = UIManager.getSystemLookAndFeelClassName();
UIManager.setLookAndFeel(lookAndFeel);
}
catch(Exception lFE){
//process exception
}
}
//3.1
//-----------------------setStatus()---------------------------
private void setStatus(String msg){
statusBar.setText(" " + msg);
}
//----------------------------positionWindow-----------------------------
//#4.1 Position the Frame
private void positionWindow(){
Dimension sizeOfScreen = Toolkit.getDefaultToolkit().getScreenSize();
Dimension sizeOfFrame = this.getSize();
if(sizeOfFrame.height > sizeOfScreen.height){
sizeOfFrame.height = sizeOfScreen.height;
}
if(sizeOfFrame.width > sizeOfScreen.width){
sizeOfFrame.width = sizeOfScreen.width;
}
this.setLocation( (sizeOfScreen.width - sizeOfFrame.width) /2 ,
(sizeOfScreen.height - sizeOfFrame.height) /2 );
}
//#5----------------------------makeMenu()-----------------------------
private void makeMenu(){
//Create a menu bar
bar = new JMenuBar();
//create File menu
fileMenu = new JMenu("File");
fileMenu.setMnemonic('F');
//With menu items
//generate events and add handlers
exitApp = new JMenuItem("Exit");
exitApp.setMnemonic('X');
exitApp.addActionListener(this);
//Add the File items to File menu
fileMenu.add(exitApp);
//create Edit menu
editMenu = new JMenu("Edit");
editMenu.setMnemonic('E');
//With menu items
clearText = new JMenuItem("Clear Text");
clearText.setMnemonic('R');
displayText = new JMenuItem("Display Text");
displayText.setMnemonic('D');
addText = new JMenuItem("Add Text");
addText.setMnemonic('A');
//Add the Edit items to Edit menu
editMenu.add(clearText);
clearText.addActionListener(this);
editMenu.add(displayText);
displayText.addActionListener(this);
editMenu.add(addText);
addText.addActionListener(this);
//create Help menu
helpMenu = new JMenu("Help");
helpMenu.setMnemonic('H');
//With menu items
aboutThisApp = new JMenuItem("About...");
aboutThisApp.setMnemonic('A');
aboutThisApp.addActionListener(this);
//Add the Help items to Help menu
helpMenu.add(aboutThisApp);
//Add File, Edit, and Help to bar
bar.add(fileMenu);
bar.add(editMenu);
bar.add(helpMenu);
//Add the menu bar to the content pane
setJMenuBar(bar);
}//end makeMenu
//#6 Handle the events the menu generates
//-----------------------actionPerformed()-------------------------
//#6.1 Use message dialog
public void actionPerformed(ActionEvent actionEv){
if(actionEv.getSource() == exitApp){
this.setStatus("Exit");
int flag = JOptionPane.showConfirmDialog(
this, "Quit Tiffany Smith's Northwestern grades?",
"Exit Tiffany Smith's Northwestern grades",
JOptionPane.YES_NO_OPTION,
JOptionPane.WARNING_MESSAGE );
if(flag == JOptionPane.YES_OPTION){
System.exit(0);
}
}
else if(actionEv.getSource() == clearText){
setStatus("Cleared and score reset");
clearClientArea();
}
else if(actionEv.getSource() == aboutThisApp){
setStatus("Tiffany Smith CIS 110");
//#6.2 Use message dialog
JOptionPane.showMessageDialog(this, "Tiffany Smith CIS 110",
"Tiffany Smith CIS 110",
JOptionPane.INFORMATION_MESSAGE);
}
else if(actionEv.getSource() == displayText){
setStatus("Grades");
clearClientArea();
showCourse();
}
else if(actionEv.getSource() == addText){
setStatus("Add Score");
//#6.2 Use input dialog
addScore();
}
//-------------------------- clearClientArea ()---------------------------
private void clearClientArea(){
frameTextArea.setText("");
resetScore();
}
//#6.2.1
//--------------------------addScore()---------------------------
private void addScore(){
try{
String dialogValue =
JOptionPane.showInputDialog(this, "Enter final grades:",
"Add Score",
JOptionPane.INFORMATION_MESSAGE);
frameTextArea.append("\n \t" + String.valueOf(dialogValue));
}catch(Exception jEx){
showTestDialog("No value entered.\nEnter integer values.");
}
}
//#6.2.2
//--------------------------showTestDialog()---------------------------
private void showTestDialog(String testItem){
JOptionPane.showMessageDialog(this, testItem);
}
//#6.2.3
//--------------------------resetScore()---------------------------
private void resetScore(){
addedScore = TBD;
}
//#7.1-----------------------showCourse()-------------------------
private void showCourse(){
//Create a string
String CourseGrades =
"ENGLISH 205-CN - 25 Intermediate Composition , A- , ORG_BEH 301-CN - 24 Organization behavior , A " +
"CIS 110-CN - 16 Introduction to Computer Programming, TBD , ORG_BEH 367-CN - 17 Strategic Planning and Management , TBD , " +
"BUS_LAW 201-CN - 14 Business Law I: Contracts and Agency, TBD , POLI_SCI 395-CN - 12 Political Research Seminar: Terrorism, Counterterrorism, and International Security, TBD , ";
//Split the string into array elements
String coursesAndGrades[] = CourseGrades.split(",\\s");
//Increment by 2's to see both columns
//Subtract 1 to allow counting by 2's
frameTextArea.append("\n\tCourset\t\tGrades\n");
for(int cntr = 0; cntr < courseAndGrades.length - 1; cntr += 2){
frameTextArea.append("\n\t");
frameTextArea.append(courseAndGrades[cntr]
+ "\t"
+ courseAndGrades[cntr+1]
);
}
}
//#3.1-----------------------main()---------------------------------
public static void main(String args[]){
new TSNUGrades("TSNU Grades");
}//end main
}//end class
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