Question

Implement an exam application in which a user can give exam. Question will be of three types. MCQ, true false and fill in the blank. Develop a GUI in java using swings.

Answer 1

Answer:

Code :

1. import java.awt.*;  
2. import java.awt.event.*;  
3. import javax.swing.*;  
4.   
5. class OnlineTest extends JFrame implements ActionListener  
6. {  
7.     JLabel l;  
8.     JRadioButton jb[]=new JRadioButton[5];  
9.     JButton b1,b2;  
10.     ButtonGroup bg;  
11.     int count=0,current=0,x=1,y=1,now=0;  
12.     int m[]=new int[10];      
13.     OnlineTest(String s)  
14.     {  
15.         super(s);  
16.         l=new JLabel();  
17.         add(l);  
18.         bg=new ButtonGroup();  
19.         for(int i=0;i<5;i++)  
20.         {  
21.             jb[i]=new JRadioButton();     
22.             add(jb[i]);  
23.             bg.add(jb[i]);  
24.         }  
25.         b1=new JButton("Next");  
26.         b2=new JButton("Bookmark");  
27.         b1.addActionListener(this);  
28.         b2.addActionListener(this);  
29.         add(b1);add(b2);  
30.         set();  
31.         l.setBounds(30,40,450,20);  
32.         jb[0].setBounds(50,80,100,20);  
33.         jb[1].setBounds(50,110,100,20);  
34.         jb[2].setBounds(50,140,100,20);  
35.         jb[3].setBounds(50,170,100,20);  
36.         b1.setBounds(100,240,100,30);  
37.         b2.setBounds(270,240,100,30);  
38.         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);  
39.         setLayout(null);  
40.         setLocation(250,100);  
41.         setVisible(true);  
42.         setSize(600,350);  
43.     }  
44.     public void actionPerformed(ActionEvent e)  
45.     {  
46.         if(e.getSource()==b1)  
47.         {  
48.             if(check())  
49.                 count=count+1;  
50.             current++;  
51.             set();    
52.             if(current==2)  
53.             {  
54.                 b1.setEnabled(false);  
55.                 b2.setText("Result");  
56.             }  
57.         }  
58.         if(e.getActionCommand().equals("Bookmark"))  
59.         {  
60.             JButton bk=new JButton("Bookmark"+x);  
61.             bk.setBounds(480,20+30*x,100,30);  
62.             add(bk);  
63.             bk.addActionListener(this);  
64.             m[x]=current;  
65.             x++;  
66.             current++;  
67.             set();    
68.             if(current==3)  
69.                 b2.setText("Result");  
70.             setVisible(false);  
71.             setVisible(true);  
72.         }  
73.         for(int i=0,y=1;i<x;i++,y++)  
74.         {  
75.         if(e.getActionCommand().equals("Bookmark"+y))  
76.         {  
77.             if(check())  
78.                 count=count+1;  
79.             now=current;  
80.             current=m[y];  
81.             set();  
82.             ((JButton)e.getSource()).setEnabled(false);  
83.             current=now;  
84.         }  
85.         }  
86.       
87.         if(e.getActionCommand().equals("Result"))  
88.         {  
89.             if(check())  
90.                 count=count+1;  
91.             current++;  
92.             //System.out.println("correct ans="+count);  
93.             JOptionPane.showMessageDialog(this,"correct ans="+count);  
94.             System.exit(0);  
95.         }  
96.     }  
97.     void set()  
98.     {  
99.         jb[4].setSelected(true);  
100.         if(current==0)  
101.         {  
102.             l.setText("Que1: Which name is not related to programming language ?");  
103.             jb[0].setText("syntax");jb[1].setText("Error");jb[2].setText("logic");jb[3].setText("animal");   
104.         }  
105.         if(current==1)  
106.         {  
107.             l.setText("Que2: Is Programming knowledge important to sustain as a software engineer?");  
108.             jb[0].setText("True");jb[1].setText("False");  
109.         }  
110.         if(current==2)  
111.         {
112. textField = new JTextField();

        textField.setBounds(128, 28, 86, 20);

        frame.getContentPane().add(textField);

        textField.setColumns(10);

         

1.         JLabel lblName = new JLabel(“what do you mean by CSE : ");
2.         lblName.setBounds(65, 31, 46, 14);
3.         frame.getContentPane().add(lblName);
4.             
5.         }  
6.         l.setBounds(30,40,450,20);  
7.         for(int i=0,j=0;i<=90;i+=30,j++)  
8.             jb[j].setBounds(50,80+i,200,20);  
9.     }  
10.     boolean check()  
11.     {  
12.         if(current==0)  
13.             return(jb[1].isSelected());  
14.         if(current==1)  
15.             return(jb[2].isSelected());  
16.         if(current==2)  
17.             return(jb[3].isSelected());  
18.         return false;  
19.     }  
20.     public static void main(String s[])  
21.     {  
22.         new OnlineTest("Exam application of Mulitiple choice , Fill in the blank and True or False ");  
23.     }  
24. }