Murach's Beginning Java 2, SDK 1.4This chapter shows how to write a complete Java application that uses comments, primitive data types, variables, strings, dialog boxes, if statements, and a while loop. To see how well this chapter works, you can download this chapter for free. |
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| Chapter 2 | Java language essentials (part 1) | |
| Basic coding skills | 36 | |
| How to code comments | 36 | |
| How to code statements | 36 | |
| How to create identifiers | 38 | |
| How to declare a class | 40 | |
| How to declare a main method | 42 | |
| How to work with the primitive data types | 44 | |
| The eight primitive data types | 44 | |
| How to initialize variables | 46 | |
| How to initialize constants | 46 | |
| How to code assignment statements | 48 | |
| How to code arithmetic expressions | 50 | |
| Four classes for working with data | 52 | |
| How to use the String class to create a String object | 52 | |
| How to use two methods of the String class | 54 | |
| How to join two or more strings | 54 | |
| How to use the Integer and Double classes | 56 | |
| How to use two methods of the System.out object to print data to the console | 58 | |
| How to use the JOptionPane class for input and output | 62 | |
| How to import classes | 62 | |
| How to use the JOptionPane class to get input | 64 | |
| How to use the System.exit method to end a JOptionPane thread | 64 | |
| How to use two more methods of the JOptionPane class | 66 | |
| How to code control statements | 68 | |
| How to code conditional expressions | 68 | |
| How to code if/else statements | 70 | |
| How to code while statements | 72 | |
| The Invoice application | 74 | |
| The dialog boxes for the application | 74 | |
| The code for the application | 74 | |
| Perspective | 76 | |
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© Copyright 1998-2008 Mike Murach & Associates, Inc. All rights reserved. |
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