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Java-Swing-Registration-Quiz-App/OnlineTest.java at main · gaureshpai/Java-Swing-Registration-Quiz-App · GitHub
This repository was archived by the owner on Jul 3, 2025. It is now read-only.
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import
javax
.
swing
.*;
import
java
.
awt
.*;
import
java
.
awt
.
event
.*;
import
java
.
io
.*;
public
class
OnlineTest
extends
JFrame
implements
ActionListener
{
JLabel
questionLabel
;
JRadioButton
options
[] =
new
JRadioButton
[
4
];
JButton
nextButton
,
bookmarkButton
,
prevButton
,
resultButton
;
ButtonGroup
buttonGroup
;
int
count
=
0
,
current
=
0
,
bookmarkCount
=
1
;
int
bookmarks
[] =
new
int
[
10
];
String
username
;
public
OnlineTest
(
String
username
) {
this
.
username
=
username
;
questionLabel
=
new
JLabel
();
buttonGroup
=
new
ButtonGroup
();
for
(
int
i
=
0
;
i
<
4
;
i
++) {
options
[
i
] =
new
JRadioButton
();
buttonGroup
.
add
(
options
[
i
]);
}
nextButton
=
new
JButton
(
"Next"
);
bookmarkButton
=
new
JButton
(
"Bookmark"
);
prevButton
=
new
JButton
(
"Previous"
);
resultButton
=
new
JButton
(
"Result"
);
nextButton
.
addActionListener
(
this
);
bookmarkButton
.
addActionListener
(
this
);
prevButton
.
addActionListener
(
this
);
resultButton
.
addActionListener
(
this
);
add
(
questionLabel
);
for
(
int
i
=
0
;
i
<
4
;
i
++) {
add
(
options
[
i
]);
}
add
(
nextButton
);
add
(
prevButton
);
add
(
bookmarkButton
);
add
(
resultButton
);
setLayout
(
null
);
questionLabel
.
setBounds
(
30
,
40
,
450
,
20
);
for
(
int
i
=
0
;
i
<
4
;
i
++) {
options
[
i
].
setBounds
(
50
,
100
+
i
*
30
,
200
,
20
);
}
nextButton
.
setBounds
(
100
,
280
,
100
,
30
);
prevButton
.
setBounds
(
210
,
280
,
100
,
30
);
bookmarkButton
.
setBounds
(
320
,
280
,
100
,
30
);
resultButton
.
setBounds
(
480
,
20
,
100
,
30
);
setSize
(
600
,
400
);
setLocationRelativeTo
(
null
);
setDefaultCloseOperation
(
JFrame
.
EXIT_ON_CLOSE
);
setVisible
(
true
);
setQuestions
();
}
public
void
actionPerformed
(
ActionEvent
e
) {
if
(
e
.
getSource
() ==
nextButton
) {
if
(
checkAnswer
()) {
count
++;
}
current
++;
setQuestions
();
if
(
current
==
9
) {
nextButton
.
setEnabled
(
false
);
bookmarkButton
.
setEnabled
(
false
);
resultButton
.
setVisible
(
true
);
}
}
else
if
(
e
.
getSource
() ==
bookmarkButton
) {
JButton
bookmarkBtn
=
new
JButton
(
"Bookmark "
+
bookmarkCount
);
bookmarkBtn
.
setBounds
(
480
,
20
+
30
*
bookmarkCount
,
100
,
30
);
add
(
bookmarkBtn
);
bookmarkBtn
.
addActionListener
(
this
);
bookmarks
[
bookmarkCount
] =
current
;
bookmarkCount
++;
current
++;
setQuestions
();
if
(
current
==
9
) {
bookmarkButton
.
setEnabled
(
false
);
resultButton
.
setVisible
(
true
);
}
setVisible
(
false
);
setVisible
(
true
);
}
else
if
(
e
.
getSource
() ==
prevButton
) {
if
(
current
>
0
) {
current
--;
setQuestions
();
}
}
else
{
for
(
int
i
=
0
,
y
=
1
;
i
<
bookmarkCount
;
i
++,
y
++) {
if
(
e
.
getActionCommand
().
equals
(
"Bookmark "
+
y
)) {
if
(
checkAnswer
())
count
++;
int
temp
=
current
;
current
=
bookmarks
[
y
];
setQuestions
();
((
JButton
)
e
.
getSource
()).
setEnabled
(
false
);
current
=
temp
;
}
}
if
(
e
.
getSource
() ==
resultButton
) {
if
(
checkAnswer
())
count
++;
saveResultToCSV
(
username
,
count
);
JOptionPane
.
showMessageDialog
(
this
,
"Correct answers: "
+
count
+
"
\n
Thank you for taking the quiz!"
);
System
.
exit
(
0
);
}
}
}
void
setQuestions
() {
options
[
0
].
setSelected
(
true
);
switch
(
current
) {
case
0
:
questionLabel
.
setText
(
"Que1: Which one among these is not a datatype"
);
options
[
0
].
setText
(
"int"
);
options
[
1
].
setText
(
"Float"
);
options
[
2
].
setText
(
"boolean"
);
options
[
3
].
setText
(
"char"
);
break
;
case
1
:
questionLabel
.
setText
(
"Que2: Which class is available to all classes automatically"
);
options
[
0
].
setText
(
"Swing"
);
options
[
1
].
setText
(
"Applet"
);
options
[
2
].
setText
(
"Object"
);
options
[
3
].
setText
(
"ActionEvent"
);
break
;
case
2
:
questionLabel
.
setText
(
"Que3: Which package is directly available to our class without importing it"
);
options
[
0
].
setText
(
"swing"
);
options
[
1
].
setText
(
"applet"
);
options
[
2
].
setText
(
"net"
);
options
[
3
].
setText
(
"lang"
);
break
;
case
3
:
questionLabel
.
setText
(
"Que4: String class is defined in which package"
);
options
[
0
].
setText
(
"lang"
);
options
[
1
].
setText
(
"Swing"
);
options
[
2
].
setText
(
"Applet"
);
options
[
3
].
setText
(
"awt"
);
break
;
case
4
:
questionLabel
.
setText
(
"Que5: Which institute is best for Java coaching"
);
options
[
0
].
setText
(
"Utek"
);
options
[
1
].
setText
(
"Aptech"
);
options
[
2
].
setText
(
"SSS IT"
);
options
[
3
].
setText
(
"jtek"
);
break
;
case
5
:
questionLabel
.
setText
(
"Que6: Which one among these is not a keyword"
);
options
[
0
].
setText
(
"class"
);
options
[
1
].
setText
(
"int"
);
options
[
2
].
setText
(
"get"
);
options
[
3
].
setText
(
"if"
);
break
;
case
6
:
questionLabel
.
setText
(
"Que7: Which one among these is not a class"
);
options
[
0
].
setText
(
"Swing"
);
options
[
1
].
setText
(
"Actionperformed"
);
options
[
2
].
setText
(
"ActionEvent"
);
options
[
3
].
setText
(
"Button"
);
break
;
case
7
:
questionLabel
.
setText
(
"Que8: Which one among these is not a function of the Object class"
);
options
[
0
].
setText
(
"toString"
);
options
[
1
].
setText
(
"finalize"
);
options
[
2
].
setText
(
"equals"
);
options
[
3
].
setText
(
"getDocumentBase"
);
break
;
case
8
:
questionLabel
.
setText
(
"Que9: Which function is not present in the Applet class"
);
options
[
0
].
setText
(
"init"
);
options
[
1
].
setText
(
"main"
);
options
[
2
].
setText
(
"start"
);
options
[
3
].
setText
(
"destroy"
);
break
;
case
9
:
questionLabel
.
setText
(
"Que10: Which one among these is not a valid component"
);
options
[
0
].
setText
(
"JButton"
);
options
[
1
].
setText
(
"JList"
);
options
[
2
].
setText
(
"JButtonGroup"
);
options
[
3
].
setText
(
"JTextArea"
);
break
;
}
questionLabel
.
setBounds
(
30
,
40
,
450
,
20
);
}
boolean
checkAnswer
() {
switch
(
current
) {
case
0
:
return
options
[
1
].
isSelected
();
case
1
:
return
options
[
2
].
isSelected
();
case
2
:
return
options
[
3
].
isSelected
();
case
3
:
return
options
[
0
].
isSelected
();
case
4
:
return
options
[
2
].
isSelected
();
case
5
:
return
options
[
2
].
isSelected
();
case
6
:
return
options
[
1
].
isSelected
();
case
7
:
return
options
[
3
].
isSelected
();
case
8
:
return
options
[
1
].
isSelected
();
case
9
:
return
options
[
2
].
isSelected
();
default
:
return
false
;
}
}
void
saveResultToCSV
(
String
name
,
int
score
) {
String
csvFile
=
"result.csv"
;
File
file
=
new
File
(
csvFile
);
try
{
FileWriter
writer
=
new
FileWriter
(
file
,
true
);
BufferedWriter
bw
=
new
BufferedWriter
(
writer
);
PrintWriter
pw
=
new
PrintWriter
(
bw
);
pw
.
println
(
"Name: "
+
name
+
" | Quiz Score: "
+
score
);
pw
.
flush
();
pw
.
close
();
}
catch
(
IOException
e
) {
e
.
printStackTrace
();
}
}
}
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