CHAPTER 28 — Parameters in Method Calls

An object contains both variables and methods. Often when you use a method, you need to give it some information which says exactly what you want to happen. For example:

Point pt = new Point();

pt.move( 14, 22 );              // move pt to x=14, y=22

The move() method must be used with two parameters that give the x and the y value of the new location of the point.

Chapter Topics:

• Methods with no parameters.
• Parameter lists.
• Data types of parameters.
• Expressions in parameter lists.
• Conversion of values in parameter lists to required types.

String str = new String("alphabet soup");
int    len = str.length();