BCA 4020 - JAVA PROGRAMMING BCA 4020 - JAVA PROGRAMMING

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SPRING 2016, ASSIGNMENT

PROGRAM	BCA(REVISED FALL 2012)
SEMESTER	4
SUBJECT CODE & NAME	BCA 4020 - JAVA PROGRAMMING BCA 4020 - JAVA PROGRAMMING
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.

Q1. Explain any five features of Java.

Answer :1) Compiled and Interpreter:- has both Compiled and Interpreter Feature Program of java is First Compiled and Then it is must to Interpret it .First of all The Program of java is Compiled then after Compilation it creates Bytes Codes rather than Machine Language.

Then After Bytes Codes are Converted into the Machine Language is Converted into the Machine Language with the help of the Interpreter So For Executing the java Program First of all it is necessary to Compile it then it must be Interpreter

 2) Platform Independent:- Java Language is Platform Independent means program of java is Easily transferable because after Compilation of java

Q2. Describe main () method in Java. What are the rules for writing a main () method?

Answer : The main() Method

A Java program needs to start its execution somewhere. A Java program starts by executing the main method of some class. You can choose the name of the class to execute, but not the name of the method. The method must always be called 

Q3. 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. Enumerations and annotation types are special kinds of classes and interfaces, respectively, so types are often referred to in this lesson simply as classes and interfaces.

Creating a Package:

To create a package, you choose a name for the package and put a package statement with that name at the top of every source file that contains the types (classes, interfaces, enumerations, and annotation types) that you want to include in the

Q5 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 JDBC (Java

Q6 Describe about:

a) Swing

Answer : Swing is a GUI widget toolkit for Java. It is part of Oracle's Java Foundation Classes (JFC) — an API for providing a graphical user interface (GUI) for Java programs.

Swing was developed to provide a more sophisticated set of GUI components than the earlier Abstract Window Toolkit (AWT). Swing provides a native look and feel that emulates the look and feel of several platforms, and also supports a pluggable look and feel that allows applications to have a look and feel unrelated to the underlying platform. It has more powerful and flexible components than AWT. In addition to familiar components

Dear students get fully solved assignments

Send your semester & Specialization name to our mail id :

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