A Closer Look at Methods and Classes
Exploring the String class Although the String class will be examined in depth in Part II of this book, a short exploration of it is warranted now, because we will be using strings in some of the example programs shown toward the end of Part I. String is probably the...
A Closer Look at Methods and Classes
Introducing Nested And Inner Classes It is possible to define a class within another class; such classes are known as nested lasses. The Scope of a nested class is bounded by the scope of its enclosing class. Thus, if class Bis defined within class A, then Bis known...
A Closer Look at Methods and Classes
Introducing final A variable can be declared as final. Doing so prevents its contents from being. modified. This means that you must initialize a final variable when it is declared. (In this usage, final is similar to canst in C/C++.) For example•Subsequent parts of...
A Closer Look at Methods and Classes
Understanding Static Although methods will usually provide access to the data defined by a class, this does not always have to be the case. It is perfectly proper to allow an instance variable to be public when there is good reason to do so, For example, most of the...
A Closer Look at Methods and Classes
Introducing Access Control As you know, encapsulation links data with the code that manipulates it. However encapsulation provides another important attribute: access control. Through ' encapsulation, you can control what parts of a program can access ,the members of...
A Closer Look at Methods and Classes
Recursion Java support recourse Recursion is the process of defining something in terms of itself. As it relates to Java programming. recursion is the attribute that allows a method to call itself. A method that calls itself is said to be recursive. The classic...
