Teach Yourself Java in 21 Days

Day
6
Creating Classes and Applications in Java
95
Defining Classes ....................................................................................... 96
Creating Instance and Class Variables ....................................................... 96
Defining Instance Variables ................................................................. 97
Constants ............................................................................................. 97
Class Variables ..................................................................................... 98
Creating Methods ..................................................................................... 99
Defining Methods ............................................................................... 99
The this Keyword ............................................................................... 101
Variable Scope and Method Definitions ............................................ 101
Passing Arguments to Methods .......................................................... 102
Class Methods ................................................................................... 104
Creating Java Applications ...................................................................... 105
Java Applications and Command-Line Arguments ................................. 106
Passing Arguments to Java Programs .................................................. 106
Handling Arguments in Your Java Program ....................................... 106
Summary ................................................................................................ 108
Q&A ...................................................................................................... 109
Day
7
More About Methods
111
Creating Methods with the Same Name, Different Arguments ............... 112
Constructor Methods ............................................................................. 115
Basic Constructors ............................................................................. 116
Calling Another Constructor ............................................................. 117
Overloading Constructors .................................................................. 117
030-4 FM
1/29/96, 8:11 PM
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