Algorithms / Methods

An algorithm

• is fake code.

• answers the question "How do I do it?"

• is usually well written on your first attempt.

• is a set of step by step instructions used to solve a problem.

Pseudocode

• should look like a numbered outline.

• is used to help you understand the problem.

• is a well structured programming language.

• usually looks like a generalized version programming languages.

A method

• can be declared as void and still return an int

• will return an int if its parameters are ints

• must have a return type

• must have at least one parameter

A method variable

• can be seen by all methods

• must be declared outside of all methods

• only exists in the method it was created

• is a variable with no parameters

GIven

public static int myMethod(int num, String word)

which of the following can not be in the same class

• public static int myMethod(String word, int num)

• public static String myMethod(int num, String word)

• public static int myMethod(int num)

• public static int anotherMethod(int num, String word)

Method overloading is

• when two or more methods have the same name

• when two or more methods have the same parameters

• when two or more methods have the same signature

• a method has more than 10 lines of code in it

Which of the following are false?

• The methods return type, is the data type of the data the method returns when it is complete.

• If you do not want to return any data then the return type must be declared void.

• The last line of code in a method must be its final return statement.

• A method can return as many pieces of data as it needs to.

Which of the following are true?

• A method can be declared inside of another method

• A class variable can only be changed by the main method

• If a method changes a class variable the old value will still be there after the method is returned

• A class variable can only be defined outside of any method when it is declared