testcircle.java

来自「此源码为机械工业出版社出版的《Java语言程序设计》第三版所配套的书中所有源代码」· Java 代码 · 共 24 行

// TestCircle.java: Demonstrate creating and using an object
public class TestCircle
{
  // Main method
  public static void main(String[] args)
  {
    Circle myCircle = new Circle();  // Create a Circle object
    System.out.println("The area of the circle of radius "
      + myCircle.radius + " is " + myCircle.findArea());
  }
}
/*
// Define a circle
class Circle
{
  double radius = 1.0;

  // Find the area of this circle
  double findArea()
  {
    return radius*radius*3.14159;
  }
} */