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Displaying Source Code(s)
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Simple GUI Based Mathematics Check Prog.
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Description : There are four options:- Addition, Multiplication,
Substraction and Division. You can select any one.Type the
correct answer in the textfield. Then click "Check" Button. If
your answer is correct it will display in green or your answer
is wrong it will display in red.If You want to check the correct
answer just move the cursor to textfield it will show the
correct answer. For next expression click "Next" Button. For
effective running of this program create three gif files and
name it as correct,wrong and empty with tick symbol, wrong
symbol and empty.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;
public class Test extends JFrame
{
JPanel testpanel,answerpanel,buttonpanel;
JLabel num1,num2,oper,answer,equal;
JButton check,next;
JTextField field;
JMenuBar bar;
JMenu options;
JRadioButtonMenuItem add,mul,div,sub;
JMenuItem exit;
ButtonGroup group;
ImageIcon correct,wrong,empty;
Container cont;
int a,b,c,temp,test=0,marks=0,ch=0;
int i=23;
int j=10;
Test()
{
cont=getContentPane();
bar=new JMenuBar();
options=new JMenu("Options");
group=new ButtonGroup();
add=new JRadioButtonMenuItem("Addition",true);
sub=new JRadioButtonMenuItem("Substraction");
mul=new JRadioButtonMenuItem("Multiplication");
div=new JRadioButtonMenuItem("Division");
exit=new JMenuItem("Exit");
JSeparator separator=new JSeparator();
group.add(add);
group.add(sub);
group.add(mul);
group.add(div);
options.add(add);
options.add(sub);
options.add(mul);
options.add(div);
options.add(separator);
options.add(exit);
bar.add(options);
setJMenuBar(bar);
cont.setLayout(new BoxLayout(cont,BoxLayout.Y_AXIS));
testpanel=new JPanel();
testpanel.setBorder(new BevelBorder(BevelBorder.RAISED));
answerpanel=new JPanel();
answerpanel.setBorder(new BevelBorder(BevelBorder.RAISED));
answerpanel.setBackground(Color.white);
buttonpanel=new JPanel();
buttonpanel.setBorder(new BevelBorder(BevelBorder.RAISED));
Font f=new Font("Arial",Font.PLAIN,18);
check=new JButton("Check");
next=new JButton("Next");
buttonpanel.add(next);
buttonpanel.add(check);
num1=new JLabel(""+i);
num1.setFont(f);
num2=new JLabel(""+j);
num2.setFont(f);
oper=new JLabel("+");
oper.setFont(f);
equal=new JLabel("=");
equal.setFont(f);
correct=new ImageIcon("correct.gif");
wrong=new ImageIcon("wrong.gif");
empty=new ImageIcon("empty.gif");
answer=new JLabel();
answer.setIcon(empty);
JPanel textpanel=new JPanel();
textpanel.setBorder(new EtchedBorder(EtchedBorder.RAISED));
field=new JTextField(10);
field.setFont(f);
field.addKeyListener(new KeyAdapter()
{
public void keyTyped(KeyEvent ke)
{
char x=ke.getKeyChar();
if(x>='a'&& x<='z')
{
ke.consume();
}
else
{}
}
});
field.setText("");
textpanel.add(field);
answerpanel.add(answer);
testpanel.add(num1);
testpanel.add(oper);
testpanel.add(num2);
testpanel.add(equal);
testpanel.add(textpanel);
testpanel.add(answerpanel);
cont.add(testpanel);
cont.add(buttonpanel);
field.addMouseListener(new mouselistener());
check.addActionListener(new buttonlistener());
next.addActionListener(new buttonlistener());
add.addItemListener(new radiohandler());
sub.addItemListener(new radiohandler());
mul.addItemListener(new radiohandler());
div.addItemListener(new radiohandler());
exit.addActionListener(new buttonlistener());
}
public class radiohandler implements ItemListener
{
public void itemStateChanged(ItemEvent itemevent)
{
AbstractButton
button=(AbstractButton)itemevent.getItem();
String label=button.getText();
if(label.equals("Addition"))
{
oper.setText("+");
field.setText("");
initialise();
setTitle("ADDITION");
}
if(label.equals("Substraction"))
{
oper.setText("-");
field.setText("");
initialise();
setTitle("SUBSTRACTION");
}
if(label.equals("Multiplication"))
{
oper.setText("*");
field.setText("");
initialise();
setTitle("MULTIPLICATION");
}
if(label.equals("Division"))
{
oper.setText("/");
initialise();
field.setText("");
setTitle("DIVISION");
}
}
}
public void initialise()
{
field.setEditable(true);
field.setForeground(Color.black);
num1.setText("23");
num2.setText("10");
answer.setIcon(empty);
validate();
test=0;
}
class mouselistener extends MouseAdapter
{
public void mouseEntered(MouseEvent me)
{
if(test==1)
{
field.setForeground(Color.green);
field.setToolTipText(""+c);
field.setText(""+c);
answer.setIcon(correct);
}
else
{
c=0;
field.setToolTipText(""+c);
}
}
public void mouseExited(MouseEvent me)
{
if(test==1)
{
if(temp==c)
{
field.setText("");
field.setForeground(Color.green);
field.setText(""+temp);
answer.setIcon(correct);
}
else
{
field.setText("");
field.setForeground(Color.red);
field.setText(""+temp);
answer.setIcon(wrong);
}
}
else if(test==0)
{
temp=0;
}
}
}
class buttonlistener implements ActionListener
{
public void actionPerformed(ActionEvent ae)
{
String str=ae.getActionCommand();
if(str.equals("Check"))
{
temp=Integer.parseInt(field.getText());
field.setText("");
String mathoper=oper.getText();
a=Integer.parseInt(num1.getText());
b=Integer.parseInt(num2.getText());
if(mathoper.equals("+"))
{
addcheck();
}
if(mathoper.equals("-"))
{
subcheck();
}
if(mathoper.equals("*"))
{
mulcheck();
}
if(mathoper.equals("/"))
{
divcheck();
}
check();
test=1;
}
if(str.equals("Next"))
{
int x=i+2;
int y=i+2;
i=Integer.parseInt(num1.getText()) + randomInt(x);
j=Integer.parseInt(num2.getText()) + randomInt(y);
num1.setText(""+i);
num2.setText(""+j);
field.setEditable(true);
field.setForeground(Color.black);
field.setText("");
test=0;
answer.setIcon(empty);
field.requestFocus();
validate();
}
if(str.equals("Exit"))
{
System.exit(0);
}
}
}
static int randomInt(int max)
{
int r=(int)(max*Math.random());
r%=max;
return r;
}
public void addcheck()
{
c=a+b;
}
public void subcheck()
{
c=a-b;
}
public void mulcheck()
{
c=a*b;
}
public void divcheck()
{
c=a/b;
}
public void check()
{
if(temp==c)
{
field.setText(""+temp);
field.setForeground(Color.green);
answer.setIcon(correct);
}
else
{
field.setText(""+temp);
field.setForeground(Color.red);
answer.setIcon(wrong);
}
}
public static void main(String args[])
{
Test test=new Test();
test.setTitle("ADDITION");
test.setSize(400,170);
test.show();
test.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
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