Advanced Java programming by Uttam Kumar Roy

By Uttam Kumar Roy

Complex Java Programming is a textbook in particular designed for undergraduate and postgraduate scholars of laptop technology, info expertise, and computing device purposes (BE/BTech/BCA/ME/M.Tech/MCA). Divided into 3 elements, the e-book presents an exhaustive assurance of issues taught in complicated Java and different comparable matters. It first introduces vital language beneficial properties corresponding to mirrored image, JNI, template, AWT and swing, defense and so on. the second one half basically specializes in middle community programming suggestions equivalent to sockets, RMI, Mail, XML-RPC and so forth. The state of the art options reminiscent of cleaning soap, Applet, Servlet, JSP, JDBC, Hibernate, JMS, J2EE, JNDI, CORBA, JSF and so on. were mentioned within the final half. The content material is improved with various illustrations, examples, application codes, and screenshots. With its lucid presentation and inclusion of diverse real-world examples and codes, the publication should be both priceless for Java pros

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When an exception occurs during the execution of the code in the try block, JVM creates an exception object and declares that something wrong has happened. The exception object contains a lot of useful debugging information such as name of thread, file name, line of code at which exception occurred, name of exception and it’s description etc. The process of creating this object and disclosing it is called throwing the exception. Throwing an exception disrupts the normal flow of execution. The JVM then tries to find code (called handler) that wants to handle (resolve) the exceptional situation.

What is the full form of jhat? 6. What is difference between block tags and in-line tag? 15. What is the function of jhat command? 7. Write the name of a few tags for methods. 8. Write the examples of repeatable and nonrepeatable tags. 9. What is the function of javap command? 16. How do you obtain a JVM dump file? 17. What is the function of jdb? 18. Demonstrate how jdm can be used in step by step program debugging. 1 EXCEPTIONS Exceptions are exceptional/unusual/abnormal events that occur during the execution of programs.

2 HANDLING EXCEPTIONS Five keywords are used for exception handling. They are try, catch, throw, throws and finally. , which might cause some exception) in a block called try block, which looks like this: try { //code to inspect... } When an exception occurs during the execution of the code in the try block, JVM creates an exception object and declares that something wrong has happened. The exception object contains a lot of useful debugging information such as name of thread, file name, line of code at which exception occurred, name of exception and it’s description etc.

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