Colorado State University

Recitation R9 - File Input & Output
Summer 2016

CS160: Foundations in Programming

Circle Class

Create the following instance variables and methods inside your Circle class
  1. One instance variables of type double named radius.
  2. A constructor that takes one parameter and assigns that value to the instance variable.
  3. a private non-static method called area that has no parameters and returns a double.
  4. a toString method that returns the following:
    Circle, (Radius: #), Area: #
Radius and Area should be formatted to 2 decimal places.


To make sure your Circle class is printing what you want it to print. Create a Triangle object in your main method using the following code:
Circle shape = new Circle(5.5);

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