Mca 4030 programming in java
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This document provides information about an assignment for a Programming in Java course. It includes 6 questions to answer related to topics like multithreading, Java bytecode, break and continue statements, packages vs interfaces, applets and their restrictions, JDBC vs ODBC, and Java Beans. Students are instructed to send their semester and specialization to an email address or call a phone number to receive fully solved assignments.
Mca 4030 programming in java
- 1. Dear students get fully solved assignments Send your semester & Specialization name to our mail id : [email protected] or call us at : 08263069601 FALL 2016, ASSIGNMENT PROGRAM MCA(REVISED FALL 2012) SEMESTER 1 SUBJECT CODE & NAME MCA 4030 - PROGRAMMING IN JAVA CREDIT 4 BK ID B1477 MAX.MARKS 60 Note: Answer all questions. Kindly note that answers for 10 marks questions should be approximately of 400 words. Each question is followed by evaluation scheme. 1 Describe the following: a) Multi-threading. Answer : Multithreading in java is a process of executing multiple threads simultaneously. Thread is basically a lightweight sub-process, a smallest unit of processing. Multiprocessing and multithreading, both are used to achieve multitasking. But we use multithreading than multiprocessing because threads share a common memory area. They don't allocate b) Significance of Java Bytecode Answer : Java is build on WODA (Write Once Deploy Anywhere) principle. This means you don't have to tweak a Java source code if you want to deploy it in another OS. But at the end of the day, java programsneed a JVMto run on and JVMbeing machine language specific cannot be platform- neutral. So, we 2 Differentiate Break and Continue statements in Java with example program. Answer:A breakstatementwhenappliedtoa loopendsthe statement.A continue statement ends the iterationof the currentloopand returnsthe control to the loopstatement.If the break keyword isfollowedbyanidentifierthatisthe label of a randomenclosingstatement,executiontransfersout
- 2. of thatenclosingstatement.If the continue keyword is followed by an identifier that is the label of an enclosing loop, execution skips to the end of that loop instead. break:breaksthe current loopandmovesthe cursor to nextline afterthe loop e.g. 3 Differentiate between packages and Interfaces. Answer : Packages Definition: A package is a grouping of related types providing access protection and name space management. Note that types refers to classes, interfaces, enumerations, and annotation types. Enumerationsandannotationtypesare special kindsof classesandinterfaces,respectively,so types are often referred to in this lesson simply as classes and interfaces. Creating a Package: 4 What are Applets? What are the restrictions of Applets? Describe about applet class. Answer : What is an Applet in Java ? An Applet is a small java program that runs in a Java enabled web browser. Java Applet is a small piece of java code that is embedded into HTML page, which gets executed when the HTML page loadsintothe browser.Appletsprovide powerful client-side functionality.Asappletsare loadedfrom remote machines and executed on client-side, there are various security restrictions on applets. – Applets Restrictions Applets have many restrictions over the 5 Compare JDBC and ODBC Answer : Typically, software applications are written in a specific programming language (such as Java, C#, etc.), while databases accept queries in some other database specific language (such as SQL). Therefore, when a software application needs to access data in a database, an interface that can translate languagestoeachother(applicationanddatabase) isrequired.Otherwise, application programmers need to learn and 6 Describe about Java Beans and BeanBox. Answer : A Java Bean is a reusable software component that can be manipulated visually in an application builder tool. The idea is that one can start with a collection of such components, and quickly wire them together to form complex programs without actually writing any new code. Software components must, in general, adopt standard techniques for interacting with the rest of the world. For example, all GUI components inherit the java.awt.Component class, which means
- 3. that one can rely on them to have certain standard methods like paint(), setSize(), etc. Java Beans are not actually required to inherit a Dear students get fully solved assignments Send your semester & Specialization name to our mail id : [email protected] or call us at : 08263069601