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(FALL 2014) ASSIGNMENT
| PROGRAM | Master of Science in Information Technology(MSc IT)Revised Fall 2011 |
| SEMESTER | 1 |
| SUBJECT CODE & NAME | MIT103- OBJECT ORIENTED PROGRAMMING |
| CREDIT | 2 |
| 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 about Multi-threading. What is the significance of Java Bytecode?
Answer : Multithreading is the ability of a program or an operating system process to manage its use by more than one user at a time and to even manage multiple requests by the same user without having to have multiple copies of the programming running in the computer. Each user request for a program or system service (and here a user can also be another program) is kept track of as a thread with a separate identity. As programs work on
2 What is the significance of Access specifiers? Explain about the three access Specifiers.
Answer :
Definition – What does Access Specifier mean?
An access specifier is a defining code element that can determine which elements of a program are allowed to access a specific variable or other piece of data. Different programming languages have their own protocols for access specifiers, as well as defaults for some code elements including both individual variables and classes.
Two of the most common access specifiers are “public” and “private.” Where a program may include elements that are public or private by default, programmers can often change their status by defining, or “declaring,” the element with either the
3 Define exception. List few exceptions that may occur during program execution. Describe about exception classes.
Answer : Definition: An exception is an event, which occurs during the execution of a program, that disrupts the normal flow of the program’s instructions.
When an error occurs within a method, the method creates an object and hands it off to the runtime system. The object, called an exception object, contains information about the error, including its type and the state of the program when the error occurred. Creating an exception object and handing it to the runtime system is called throwing an
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 loads into the browser.Applets provide powerful client-side functionality. As applets are loaded from remote machines and executed on client-side, there are various security restrictions on applets. –
Applets Restrictions
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 languages to each other (application and database) is required. Otherwise, application programmers need to learn and incorporate database specific languages within their applications. ODBC (Open Database Connectivity) 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 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
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or
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