Methods Continued:

Void methods

· Do not return a value, just return

VOID Ex

System.out.println(“Hello”);

voidMethod();

System.out.println(“Goodbye”);

…

static void voidMethod()

{

System.out.println(“completely void…”);

}

Param Passing Ex

System.out.println(“Hello”);

String phrase = “blah blah blah”;

voidMethod(phrase);

System.out.println(“Goodbye”);

…

static void voidMethod(String phrase)

{

System.out.println(“Scope cleans teeth and variables…”);

System.out.println(phrase);

}

Why use methods?

· Reusability

· Clarity

· Abstraction / Detail Hiding

· Ease of Debugging

· Easy to Understand

· Intuitive

How to Program:

· Analyze Problem

· Design Methods

• Name the Method
• Determine return types
• Determine parameters
• Basic Task

· Put it all together!