{ // Save as "TestCircle.java"
public static void Main(String[] args)
{
// Declare an instance of Circle class called c1.
// Construct the instance c1 by invoking the "default" constructor
// which sets its radius and color to their default value.
Circle c1 = new Circle();
// Invoke public methods on instance c1, via dot operator.
Console.WriteLine("The circle has radius of "
+ c1.getRadius() + " and area of " + c1.getArea());
// Declare an instance of class circle called c2.
// Construct the instance c2 by invoking the second constructor
// with the given radius and default color.
Circle c2 = new Circle(2.0);
// Invoke public methods on instance c2, via dot operator.
Console.WriteLine("The circle has radius of "
+ c2.getRadius() + " and area of " + c2.getArea());
Circle c3 = new Circle(2.0);
Console.WriteLine("The circle has radius of "
+ c2.getRadius() + " and area of " + c2.getArea() + " and color of " + c2.getColor());
Circle c4 = new Circle(); // construct an instance of Circle
c4.setRadius(5.0); // change radius
c4.setColor("blue"); // Change color
Console.WriteLine("The circle has radius is: " + c4.getRadius() + // Print radius via getter
" and the circle color is: " + c4.getColor()); // Print color via getter
// You cannot do the following because setRadius() returns void,
// which cannot be printed.
// Console.WriteLine(c4.setRadius(4.0));
Circle c5 = new Circle(5.0);
Console.WriteLine(c1.ToString()); // explicit call
Circle c6 = new Circle(1.2);
Console.WriteLine(c2.ToString()); // explicit call
Console.WriteLine(c2); // println() calls toString() implicitly, same as above
Console.WriteLine("Operator '+' invokes toString() too: " + c2); // '+' invokes toString() too
Console.WriteLine();
TheRectangleClass r1 = new TheRectangleClass();
r1.SetWidth(4.0f);
Console.WriteLine(r1.ToString() + "Area = " + r1.getArea());
Console.WriteLine();
EmployeeClass e1 = new EmployeeClass();
e1.setSalary(5000);
Console.WriteLine(e1.ToString());
Console.WriteLine("Annual salary " + e1.getAnnualSalary());
Console.WriteLine();
InvoiceItem i1 = new InvoiceItem();
i1.setQty(33);
i1.setUnitPrice(440);
Console.WriteLine("ID is = " + i1.getID() + " Desc is = " + i1.getDesc());
Console.WriteLine("Total is = " + i1.getTotal());
Console.WriteLine(i1.ToString());
Console.WriteLine();
Account a1 = new Account();
Console.WriteLine("ID is = " + a1.getID() + " Name is = " + a1.getName());
Console.WriteLine("Balance is = " + a1.getBalance());
Console.WriteLine(a1.ToString());
Console.WriteLine();
Date d1 = new Date();
Console.WriteLine("Day is = " + d1.getDay()); // Work in progress
Console.WriteLine(d1.ToString());
Console.WriteLine();
Time t1 = new Time();
Console.WriteLine("hour is =" + t1.gethour()); // ei toimi
Console.WriteLine(t1.ToString());
}