Java Masterclass: Java Exceptions, Assertions and …

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Author : Sam Alapati
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Author : Sam Alapati
Genre : Computers

Summary : Is your Java system setup to handle programming errors, or exceptions, gracefully and with minimal impact on the user experience? Do you know how to setup assertions to check your code? Do you know how to log events so that issues can be assessed and debugged painlessly and easily? Help is at hand! Welcome to your 'Java Masterclass: Java Exceptions, Assertions and Logging' - a concise, focused book designed to get you up-and-running in this critical world of Java development and administration.Written by leading Java Expert, Sam Alapati, and aimed at newcomers to the world of exceptions, assertions and logging, this book cuts-to-the-chase in a logical and easy-to-understand manner. Get under the hood and find out about declaring, throwing and catching exceptions; what checked and unchecked exceptions mean; how to define custom exception classes; why (and how) you should use assertions; the value and power of logging; and much more! Even more experienced Java developers and administrators should gain valuable information and knowledge from this book. In the book, you will: > Learn about the different Types of Exception, and how to deal with them elegantly > Dig deep into Exception Objects and learn how to Define Custom Exceptions > Discover practical guidelines on the effective use of Exceptions, including when to chain Exceptions > Sanity check your application code, using simple pass/fail Assertion tests > Get to grips with java.util.logging, Log4J, and other logging frameworks > Filled with lots of sample code, hints, tips and notes. Download the code from the P8tech website for free

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Author : Sam R. Alapati
Genre : Computers

Summary : Best Practices for Oracle WebLogic Server 12c Configuration and Administration Maintain a high-performance enterprise application framework using the detailed information in this authoritative resource. Through expert instruction and real-world examples, Oracle WebLogic Server 12c Administration Handbook fully explains the latest management tools and techniques. Learn how to work from the Oracle WebLogic Server Administration Console or command line, configure servers and clusters, deploy applications, and optimize application performance. Tuning, troubleshooting, and load balancing are thoroughly covered in this Oracle Press guide. Install Oracle WebLogic Server 12c or perform an upgrade Manage domains, server instances, networks, and virtual hosts Work with the WebLogic Scripting Tool feature and Node Manager Build custom network channels and resource adapters Monitor performance with the WebLogic Diagnostics Framework feature Prioritize requests using Oracle WebLogic Server Work Managers Configure Oracle WebLogic clusters and migrate servers and services Deploy web applications, Enterprise JavaBeans, and Java EE modules Establish security realms and authenticate and authorize users Allocate memory, optimize throughput, and tune the Java Virtual Machine

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Author : Bhupendra singh Mandloi
Genre : Antiques & Collectibles

Summary : This ebook contains very easy examples to understand actually what happens in Exception handling.People understands the differences between Error and Exception as well as program execution flow.

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Author : Mauro Guido
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Summary : This book is intended for those Java programmers who want to deepen their knowledge of exceptions, along with some details and corner cases that are often neglected, causing some incomprehensible behaviors in our code. The various topics covered are: what exceptions are and why to use exceptions, different flavors of exceptions (checked, unchecked, errors), how to instantiate and throw an exception, how to handle exceptions properly (try/catch/finally, multiple catch blocks, multi-catch blocks, stack trace, message and cause of an exception, propagation of exceptions, partial handling), exception handling and override methods, exceptions and resources (how to avoid memory leaks, try-with-resources, the AutoCloseable interface, suppressed exceptions), custom exceptions (when it is useful to define your own exception class). All the topics covered are explained with useful examples

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Author : Douglas Dunn
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Author : Mahavir D. S. Rathore
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Summary : In a single sentence it can said "software is very pervasive and impacts human life in many ways." Today software directly or indirectly impacts many domains such as banking, healthcare, business, military, education, government etc. Hence software reliability is of highest importance and exception handling help to enhance software reliability. In this book learn how to develop reliable Java application using Java Exception Handling Infrastructure.This book has 17 chapters which have numerous examples for each of the topics and covers them comprehensively. Some of the chapters in this book are a. Exception chaining b. User defined exception c. Try with resource d. Nested exception e. Checked and Unchecked exception f. finally block with return keyword g. Overriding Exception This book is targeted for Java programmers. Level: Beginner to Intermediate.

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Author : Andrew Paul Stevens
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Summary : Exceptions in Java are generated by explicit program syntax or implicit events at runtime. The potential control flow paths introduced by these implicit exceptions must be represented in static flow graphs. The impact of these additional paths reduces the effectiveness of standard aheadof- time optimisations. This thesis presents research that focuses on measuring and reducing the effects of these implicit exceptions. In order to conduct this research, a novel static analysis framework, called JeX, has been developed. This tool provides an environment for the analysis and optimisation of Java programs using the bytecode representation. Data generated by this tool clearly shows that implicit exceptions significantly fragment the standard flow graphs used by many intraprocedural optimisation techniques. This fragmentation increases the number of flow dependence relationships and so negatively affects numerous flow analysis techniques. The main contribution of this work is the development of new algorithms that can statically prove that certain runtime exceptions can never occur. Once these exceptions have been extracted, the control flow structures are re-generated without being affected by those potential exceptions. The results show that these algorithms extract 24-29% of all implicit potential exceptions in the eight benchmark programs selected. The novel, partial stack evaluation algorithm is particularly successful at extracting potential null pointer exceptions, with reductions in these of 53-68%. This thesis also provides a simulation of perfect exception extraction by removing the effects of all implicit exceptions in the flow graphs. The secondary contribution of this research is the development of program call graph generation algorithms with novel receiver prediction analysis. This thesis presents a comparative study of the graphs generated using fast but conservative analysis with more effective rapid type analysis algorithms. This study shows that Java bytecodes are well suited to a fine-grained instance prediction type analysis technique, although this context-sensitive approach does not scale well with larger test programs. The final contribution of this work is the JeX tool itself. This is a generic, whole program analysis system for Java programs. It includes a number of general optimisation modules, algorithms for generating several static analysis data structures and a visualisation interface for viewing all data structures and Java class file contents.

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Author : Mahavir D. S. Rathore
Genre :

Summary : Level: Beginner (Should know Java language). This book is for Java programmers who want to deepen their skills in exception handling. After reading this book your understanding of exception handling will be enhanced. This book is in concise and direct MCQ (Multiple Choice Question) format, it has over 110+ questions and answers on Java exception handling. It covers many frequently asked questions hence it is useful to enhance one's knowledge on different aspects of exception handling using Java. The explanation in the book are concise not detailed. The book is spread across 17 chapters. Some of the major topics covered in book are a. User defined exception b. Exception chaining c. Finally block d. Finally with return keyword e. Checked and unchecked exceptions f. Nested Exception g. Exception handling for overridden methods