Still cannot find symbol!

[Johanis]

Hi, I tried to let one of my classes call another class and it gave me a can not find symbol error. What it is suppose to do is when you click on the calculator button it must call another class that is a calculator. Here is the calculator button:

private void SakrekenaarMouseClicked(MouseEvent e)
{
Calculator cal = new Calculator("Java Swing Calculator");
}

Here is the error that it gave me:

Lone.java:439: cannot find symbol
symbol : constructor Calculator(java.lang.String)
location: class Calculator
Calculator cal = new Calculator("Java Swing Calculator");
^

Then somebody gave a piece of code to fix the problem. Here is the code and his instructions:

Ah now I see it. Your constructor does not contain a String parameter therefore it cannot identify the constructor, since you passed a string parameter to it.

Replace your constructor header with this

Code:

public Calculator(String param){//Code}

But this only gave me another error in the calculator class:

Calculator.java:569: cannot find symbol
symbol : constructor Calculator()
location: class Calculator
Calculator calci = new Calculator();
^
1 error


Please somebody help me...:(

[Eranga]

Please don't post the same question multiple times. Stick with a one.