Chapter 6 Methods

Question 1

What is a method and what are they used for:

Answer 1

A method is a sequence of program statements that have a specific task that they perform.

Methods can be used to define reusable code, organize and simplify coding, and make code easier to maintain.

Question 2

Creating a method involves writing the statements and providing a method declaration with:

Answer 2

1. Method name (following the same rule as identifyers)
2. List of inputs (called parameters) and their data types
3. The output (return value) type

Question 3

Defining a method syntax:

Answer 3

modifier returnValueType methodName(list of parameters){
//method body
return returnValue;
}

Question 4

Calling (or invoking) a method involves

Answer 4

1. Providing the name of the method
2. Providing the arguments (inputs) if any
3. Providing variable to store the outputs (if any)

Syntax:
variable = methodName(list of arguments);

Question 5

A method is a:

Answer 5

A method is a collection of statements that are grouped together to perform an operation

Question 6

Method signature

Answer 6

Refers to the combination of the method name and the parameter list

Question 7

Formal parameters

Answer 7

The variables defined in the method header are known as the formal parameters

Question 8

Actual parameters

Answer 8

When a method is invoked, you pass a value to the parameter. This value is referred to as actual parameter or argument.

x,y in int z = max (x, y);

Question 9

Return Type Value 14