7.2. Worked Example: Writing Method Headers 2¶

Subgoals for Writing Methods

Define method header based on problem
Define return statement at the end
Define method body/logic
1. Determine types of logic (expression, selection, loop, etc)
2. Define internal variables
3. Write statements

You can watch this video or read through the content below it.

Problem 1: Write a public method that does not return anything but accepts as parameters 3 Strings and prints out a cheerful sentence with the input in it.

When you pick your method name:
- Make it something related to the use of the method.
- Recall that method names are never capitalized at the first letter.
- We will call this method cheerful
A full method header contains:
- access modifier,
- return type,
- method name, and
- full parameter list (data type parameter_name)

public void cheerful (String a, String b, String c) {}

A call to this method would look like: obj.cheerful(alpha, beta, gamma");

Problem 2: Write a public method header that would work for this call:

int  wobble;
wobble = obj.happy (7, "hello", "bye");

A full method header contains:

access modifier,

return type,

method name, and

full parameter list (data type parameter_name)

public int happy (int a, String b, String c) {}

Practice Pages