Passing object refrences?

Im working on a calculator(yes i am that bored) :D and im am trying to pass a refrence of the enclosing class to a constructor of another class. The object variable calculator is assigned a refrence to the class in the main method and is declared static. Any ideas why this fails to work? Thanks.

Code:

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public class Calculator{
  static Calculator calculator;
  public static void main(String[] args){calculator = new Calculator();}
}

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Code:

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public void addFunctionListeners(JButton[] functions){
    for(int i = 0; i < functions.length; ++i){
      functions[i].addActionListener(new FunctionListener(calculator)); // passing "this" will not work either   
  }
  }

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Code:

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class FunctionListener implements ActionListener{
  Calculator calculator;
  public void FunctionListener(Calculator calculator){
  this.calculator = calculator;
  }
}

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What's the exact error?

Ah i see it already. I do this alot and i should get out of the habit. The signature of the constructor is marked with void so the compiler treats it as a method. :rolleyes:

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