Question

Function drawCircle(radius, x =getWidth()/2, y =getHeight()/2, color=Color.red) { var circle = new Circle(radius); circle.setPosition(x, y); circle.setColor(color); add(circle); }

What is the minimum number of parameters that must be given when calling the 'drawCircle' function?

Answer 1

The minimum number of parameters that must be given when calling the 'drawCircle' function is the 'radius' parameter.

Step-by-step explanation:

The 'drawCircle' function has four parameters: 'radius', 'x', 'y', and 'color'.

When calling the 'drawCircle' function, the minimum number of parameters that must be given is the 'radius' parameter. This is because the other parameters ('x', 'y', 'color') have default values assigned to them. If no value is specified for these parameters, the default values are used.

For example, if you only provide the 'radius' value when calling the function like this: drawCircle(10);, the default values for 'x' (getWidth()/2), 'y' (getHeight()/2), and 'color' (Color.red) will be used.

The function drawCircle is defined with one mandatory parameter, radius, and three optional parameters with default values, namely x, y, and color. The presence of default values for x, y, and color indicates that you do not need to provide these arguments when calling the function unless you wish to override the default values. Therefore, the minimum number of parameters that must be given when calling the 'drawCircle' function is just one: the radius.