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    JAVA (2nd) May2018

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    JAVA (2nd) May2018

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    thasmiya9902
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    JAVA(2nd)May2018

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    4 views2 pages

    JAVA (2nd) May2018

    Uploaded by

    thasmiya9902

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    © All Rights Reserved
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    Download as pdf or txt
    of 2

    Exam.Codel.

    1220
    Sub. Code: E605

    o m
    1058
    P.G. Diploma in Computer Applications

    r . c
    Second Semester
    PGD-2101: Object Oriented Concepts using JAVA

    Time allowed: 3 Hours


    p e m
    Ma.r. Marks:60

    a
    NOTE: Attempt "five questionq in all, inctuding Question No.

    p
    and seleci:ting one question eachfrom Unit I'IV'
    c o
    IX (Unit'y) which is compulsory

    r x-x-x
    r .
    b UMT-I
    p e
    L
    p a
    a) Java is object-oriented. What are the advantages of object-oriented
    compared to procedural oriented programming?
    programming

    b r
    toop ana ao while loop with the help of a program unitten inJava
    while
    b) Briefly describe the control structures used in Java. Distinguish berween(6,6)

    ||. a) What is the role of classes in an object oriented programming languages?


    example'
    Differentiate between a class and an object with the help of a suitable
    (6,6)
    b) what is method overloading in Java? Explain with an example.

    UNIT-JI
    m. a) what is Inheritanc.t r*phinffiotugrs. Also explain
    with exarnple how a
    subclass is derived from a sup€r class in Java'
    integer in an
    b) What is an array in Java? Write a ftava program to find the largest (6,6)
    array.
    ry. a) Explain the use of final keyword with variable, method and class, by taking
    examples.
    _
    b) Define class scope. Describe the private, protecEd *nd pblic scope
    the help of a Java pro$am. (6,0

    UNIT - III
    v. a) What is a String class? Explain any three constructors of String class.

    b) Explain life cycle of thread along with diagram. (6,6)

    u. a)What is interface in Java? Explain the need of it. Explain with Java program.
    b) What is a package in Java, and how are packages used? Give an exanrple of one of

    m
    the standard packages that are part of Java.

    o
    tINIr - ry
    (6,6)

    vII. .r c
    What is the need of exception handling? Explain the use of S-catch block in

    e
    exception handling with the help of a Java program.

    p m
    (r2)

    \mr.
    a o
    List four differences between a Java application program and Java applet progruum,

    p .r c
    with an exarnple of each type of program. Explain the life cycle of applet, briefly

    b r
    describing all its methods.

    T]NIT -V e
    (12)

    IX. Attempt the following:-

    a p
    a) What are the various data types supported by Jav{?
    b) What is JVM?
    c) What is method overriding? r p
    d) What is multithreading? b
    e) How do you compute the length of an array?
    0 What is a bitwise operator in Java? (6Ya)

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