Constructor: Cannot find symbol compile error.

Hi! I compiled my code in jdk1.5 and it worked but when I compiled it in jdk1.6 it did not. So far jdk1.6 gave me 16 errors like this one:

cannot find symbol
symbol: class Circle
class TestCircle extends Circle

-------------------------Code----------------------


import javax.swing.*;
class TestCircle extends Circle

{
public static void main(String[]args)
{
TestCircle c1 = new TestCircle();
TestCircle c2 = new TestCircle();
TestCircle c3 = new TestCircle();

c1.setRadius(5);
c2.setRadius(10);
c3.getRadius(1);

c1.computeDiameter();
c1.computeArea();

c2.computeDiameter();
c2.computeArea();

c3.computeDiameter();
c3.computeArea();

JOptionPane.showMessageDialog(null, "Diameter: "+c1.diameter,"Circle 1", JOptionPane.INFORMATION_MESSAGE);
JOptionPane.showMessageDialog(null, "Area: "+c1.area,"Circle 1", JOptionPane.INFORMATION_MESSAGE);

JOptionPane.showMessageDialog(null, "Diameter: "+c2.diameter,"Circle 2", JOptionPane.INFORMATION_MESSAGE);
JOptionPane.showMessageDialog(null, "Area: "+c2.area,"Circle 2", JOptionPane.INFORMATION_MESSAGE);

JOptionPane.showMessageDialog(null, "Diameter: "+c3.diameter,"Circle 3", JOptionPane.INFORMATION_MESSAGE);
JOptionPane.showMessageDialog(null, "Area: "+c3.area,"Circle 3", JOptionPane.INFORMATION_MESSAGE);
}
}

------------

class Circle
{
double radius, diameter, area;


Circle()
{
radius = 1;
}

void setRadius(double r)
{
this.radius = r;
}

double getRadius()
{
return radius;
}

double computeDiameter()
{
diameter = radius*2;
return diameter;
}

double computeArea()
{
area = (radius*radius)*3.14;
return area;
}
}
-------------------------

Can anyone tell me what's wrong? Thank you.

Compile Circle first before you compile the other class

Thanks for your reply. I already did that, Circle compiled with no errors but after compiling TestCircle, it still gives me 16 errors.

I compiled a simple "Hello World" code. After running it, this is what I got

http://farm6.static.flickr.com/5062/...edaeb82d_z.jpg

Is there something wrong with my jdk?

Try this:

Code:

---

java -cp . Hello

---

Note there's a space-dot-space between -cp and Hello. If that works, add a "." to the CLASSPATH system variable (or better still get rid of the CLASSPATH variable altogether, unless you've installed some Java or JVM related program that needs it).

db