A Programmer's Guide to Java Certification: A Comprehesive by Khalid Mughal, Rolf Rasmussen

By Khalid Mughal, Rolf Rasmussen

To cross the solar qualified Programmer for Java 2 Platform 1.4 examination (SCPJ2 1.4) you wish this booklet. it really is written for any skilled programmer (with or with out past wisdom of Java) drawn to studying the Java programming language and passing the SCPJ2 1.4 exam.A Programmer's consultant to JavaT Certification, moment variation, includes designated assurance of all examination subject matters and goals, worthwhile code examples, workouts, evaluate questions, and a number of other complete perform assessments. moreover, as a accomplished primer to the Java programming language, this e-book is a useful reference instrument for the reader.This new version has been completely up-to-date to target the most recent model of the examination (CX-310-035). particularly, it comprises extra in-depth causes of the syntax and utilization of middle language gains which are now emphasised at the examination. The accompanying CD features a model of the SCPJ2 1.4 examination Simulator constructed by means of Whizlabs software program, which include a number of mock assessments and simulates the exam-taking adventure. The CD additionally includes the full resource code for all of the examples, and suggestions to the programming exercises.What you will discover during this book:# huge insurance of all of the pursuits outlined for the sunlight qualified Programmer for Java 2 Platform 1.4 examination# Easy-to-follow constitution with chapters geared up in response to the examination ambitions as laid out by way of sunlight Microsystems# Summaries that sincerely kingdom and differentiate the examination targets and the supplementary goals to be coated in every one bankruptcy# an inventory of Sun's targets for the SCPJ2 1.4 examination, and a advisor to taking the examination# an entire mock examination with new questions (not repeats of overview questions)# A CD that comes with a number of mock tests and a model of the SCJP 1.4 examination Simulator by means of Whizlabs software program, which simulates the exam-taking adventure# a number of exam-relevant evaluate inquiries to try out your figuring out of every significant subject, with annotated solutions# Programming workouts and strategies on the finish of every bankruptcy# Copious code examples illustrating options the place the code has been compiled and punctiliously validated on a number of structures# software output demonstrating anticipated effects from working the examples# huge use of UML (Unified Modeling Language) for representation reasons# An advent to uncomplicated terminology and ideas in object-oriented programming# suggestion on the way to steer clear of universal pitfalls in studying the language and taking the examination# Platform-independent insurance - platform-specific info are supplied the place correct# information regarding the SCPJ2 improve examination

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4 is an example of an application in which a client uses the CharStack class to reverse a string of characters. 2. no tis ot nuf era skcatS Reversed string: Stacks are fun to sit on! The public class Client defines a method with the name main. To start the application, the main() method in this public class is invoked by the Java interpreter, also called the Java Virtual Machine (JVM). The main() method should be declared as follows: public static void main(String[] args) { // ... } The main() method has public accessibility, that is, it is accessible from any class.

C. Declaration of a local variable of type float. d. Declaration of a static variable of type Object. e. Declaration of an instance variable of type int[]. 2. A Java source file can have the following elements that, if present, must be specified in the following order: 1. An optional package declaration to specify a package name. 6. 2. Zero or more import declarations. Since import declarations introduce class and interface names in the source code, they must be placed before any type declarations.

51 52 Comments A program can be documented by inserting comments at relevant places. These comments are for documentation purposes and are ignored by the compiler. Java provides three types of comments to document a program: • A single-line comment: // ... to the end of the line • A multiple-line comment: /* ... */ • A documentation (Javadoc) comment: /** ... */ Single-line Comment All characters after the comment-start sequence // through to the end of the line constitute a single-line comment.

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