methods & overloading

Question 1

What is method overloading?

Answer 1

Using the same method name with different parameters.

Question 2

Write overloaded method to calculate area of a circle.

Answer 2

public double CalculateArea(double r) { return 22 / 7 * r * r; }

Question 3

Overloaded method for rectangle area?

Answer 3

public double CalculateArea(double l, double w) { return l * w; }

Question 4

Overloaded method for triangle area?

Answer 4

public double CalculateArea(double b, double h, bool isTriangle) { return 0.5 * b * h; }

Question 5

Difference between parameter and argument?

Answer 5

Parameter: in method definition; Argument: value passed in call.

Question 6

Difference between function and procedure?

Answer 6

Function returns a value, procedure does not.

Question 7

Difference between overriding and overloading?

Answer 7

Overriding is in inherited classes, overloading is in the same class.

Question 8

How to call a method from another class?

Answer 8

new ClassName().MethodName();

Question 9

What is the return type of method GetAmountDue?

Answer 9

Double

Question 10

What value is returned by GetAmountDue(25) if rate is 15, VAT 12%?

Answer 10

375