In Java, as in C and C++, we have 2 types of functions:

• Functions that just do a series of instructions that are called: void functions.
• Functions that may do a series of instructions, but whose main job is to come up with an answer of some kind. Often this is the product of some calculation. These are called functions that return a value. For the sake of simplicity, we will call these return functions.

Format for a void function: 

public static void function_name(parameter list) 
{ 
	//statements go here 
} 


Format for a return function: 
public static type_name function_name(parameter list) 
{ 
	//statements go here return some_value; 
} 

1) If we are writing a function to print a series of instructions to the user, which type of function would we use?
2) If we are writing a function to calculate sales tax, which type of function would we use?

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