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Judul : Java Quiz App Source Code
link : Java Quiz App Source Code
Anda sekarang membaca artikel Java Quiz App Source Code dengan alamat link https://dev-create.blogspot.com/2021/08/java-quiz-app-source-code.html
Judul : Java Quiz App Source Code
link : Java Quiz App Source Code
Java Quiz App Source Code
How To Make a Java Quiz Project Using NetBeans
Project Source Code:
// create an array of questions
String[] questions = {"1 + 1 = ?","3 - 3 = ?","5 + 5 = ?","10 X 9 = ?","100 - 50 = ?"};
// create an array of options
// the last item is the correct answer
// we will check the selected answer from the user with the last item
String[][] options = {{"100","9","2","0","2"},{"15","7","0","11","0"},{"20","10","50","5","10"},{"80","70","90","100","90"},{"60","50","40","25","50"}};
// index to display the next question, correct to count the correct answers
int index = 0, correct = 0;
// button group to contain the radiobuttons
ButtonGroup bg = new ButtonGroup();
public Quiz_Form() {
initComponents();
// add the radiobuttons to the button group
bg.add(jRadioButton1_);
bg.add(jRadioButton2_);
bg.add(jRadioButton3_);
bg.add(jRadioButton4_);
jButton_Next_QActionPerformed(null);
}
public void getSelectedOption(JRadioButton rbtn)
{
// get the selected value from the radiobutton
// increment the index
// disable the radiobuttons
// check if the user selected the right answer
System.out.println(rbtn.getText());
System.out.println(options[index][4]);
if(rbtn.getText().equals(options[index][4]))
{
correct++;
}
index++;
enableRbuttons(false);
}
// enable/ disable radiobuttons
public void enableRbuttons(boolean yes_or_no)
{
jRadioButton1_.setEnabled(yes_or_no);
jRadioButton2_.setEnabled(yes_or_no);
jRadioButton3_.setEnabled(yes_or_no);
jRadioButton4_.setEnabled(yes_or_no);
}
private void jButton_Next_QActionPerformed(java.awt.event.ActionEvent evt) {
if(jButton_Next_Q.getText().equals("Restart The Quiz"))
{
// restart the quiz
jButton_Next_Q.setText("Next");
jPanel_Q_Container.setBackground(new java.awt.Color(204, 204, 204));
index = 0;
correct = 0;
}
if(index == questions.length)
{
// display the user score
Lbl_Question.setText("Your Score: " + correct + " / " + questions.length);
if(correct >= (float) questions.length/2)
{
jPanel_Q_Container.setBackground(Color.green);
}
else{
jPanel_Q_Container.setBackground(Color.red);
}
jButton_Next_Q.setText("Restart The Quiz");
}
else{
// enable radio buttons
enableRbuttons(true);
// display the next question
Lbl_Question.setText(questions[index]);
jRadioButton1_.setText(options[index][0]);
jRadioButton2_.setText(options[index][1]);
jRadioButton3_.setText(options[index][2]);
jRadioButton4_.setText(options[index][3]);
if(index == questions.length-1){
jButton_Next_Q.setText("Finish and See The Result");
}
}
// clear the selection
bg.clearSelection();
}
private void jRadioButton1_ActionPerformed(java.awt.event.ActionEvent evt) {
getSelectedOption(jRadioButton1_);
}
private void jRadioButton2_ActionPerformed(java.awt.event.ActionEvent evt) {
getSelectedOption(jRadioButton2_);
}
private void jRadioButton3_ActionPerformed(java.awt.event.ActionEvent evt) {
getSelectedOption(jRadioButton3_);
}
private void jRadioButton4_ActionPerformed(java.awt.event.ActionEvent evt) {
getSelectedOption(jRadioButton4_);
}
////// OUTPUT :
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