By John Cowell BSc(Hons), MPhil, PhD (auth.)
If you're a new programmer or a Java programmer relocating to Java 2 then this can be the e-book for you! It deals: a whole advent to Java 2; describes the language and lots of of its type libraries; indicates how they're used; describes the main techniques of item orientation with plenty of examples of ways to use the speculation. This publication will enable you benefit from Java 2's new gains (such because the summary windowing toolkit and the Swing periods) for developing graphical consumer interfaces. John Cowell explains the right way to use Swing parts to alter the feel and appear of your Java purposes so they appear like home windows, Mac or Motif purposes. sunlight Microsystems Java 2 (formerly known as the Java improvement package 1.2 - JDK 1.2) is an important leap forward within the development of Java right into a strong mature language for writing either purposes and applets. issues lined during this publication contain: the Java language; the summary windowing toolkit; the hot Java Swing parts; dealing with part, keyboard and mouse occasions; polymorphism and inheritance; animation and multithreading; dealing with exceptions; utilizing documents. Essential Java 2 - fast is designed for pro builders or scholars who have to study the utmost within the minimal time. you will advance purposes and applets quick, studying every little thing you want to write Java purposes and applets quick with Java.
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Additional info for Essential Java 2 fast : How to develop applications and applets with Java 2
The for loop has three components followed by the loop body. println("count is " + count); } • The fIrst part, count = 0, initialises the loop. If you have a loop counter, such as count, you can give it an initial value. 30 Essential Java 2 Fast • • The second part, count < 10, is the test condition. The body of the loop enclosed in braces will execute while this condition is met. The third part, count+ +, is an expression that is evaluated every time the body of the loop executes. While this is usually used to increment or decrement a loop counter, other expressions, for example count += 3 can be used instead.
Main creates an instance of the Account class and assigns values to its instance variables. 35 J. Cowell, Essential Java 2 fast © Springer-Verlag London Limited 1999 Essential Java 2 Fast 36 The defmition of the instance variables is shown below: public class Account ( String name; String address; String accountNumber; double balance; Every object we create which is an instance of the Account class will have its own set of these instance variables. println("Account balance: " + balance); } The access modifIer for this method is public.
If your computer speed is over 450 MHz a message questioning this is displayed. If none of the previous conditions are met, this unconditional statement is executed. Logical operators Often in an if... else statement you need to test more one condition. For example, you may wish to check not only the processor speed but also the amount of memory. The basic form of these statements is: if ((condition) logical operator (condition)) statement; 27 Branching and Looping You can have as many conditions separated by logical operators as you wish.
Essential Java 2 fast : How to develop applications and applets with Java 2 by John Cowell BSc(Hons), MPhil, PhD (auth.)