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PROGRAM
- BSc IT
SEMESTER
- THIRD
SUBJECT
CODE & NAME
BT0074,
OOPS with JAVA
CREDIT -
4
BK ID -
B1002
MAX.
MARKS – 60
Q1.
Describe the features of java programming language. 10
Ans:
Features of Java: Java defines data as
objects with methods that support the objects. Java is purely
object-oriented and provides abstraction, encapsulation, inheritance and
polymorphism. Even the most basic program has a class. Any code that you
write in Java is inside a class. Java is tuned for Web. Java programs
can
Q2.
Explain any four function can be used for string comparison. Write a program to
reverse a string. 4*1+6 = 10
Ans:
1.
Equals( ) and equalsIgnoreCase( ): To compare two strings
for equality, use equals( ). It has this general form:
boolean equals(Object str);
Here, str is
Q3.
Describe with the help of an example the implementation of inheritance. 10
Ans:
Example of implementation of
inheritance:
// Create a superclass.
class A {
int i, j;
Q4.
Describe the catch and finally block statement with examples. 5+5 = 10
Ans:
The catch Block: You associate an
exception-handler with the try block by providing one or more catch handlers
immediately after try block. The following skeletal code illustrates the use of
the catch
Q5.
Write a note on random access files and serialization concept. 5+5 = 10
Ans:
Random Access Files: The term random
access means that data can be read from or written to random locations within a
file. In
all the above mentioned streams, data is read and written as a
continuous stream of information. Java provides the RandomAccessFile class
to perform I/O operations at specified locations within a file.
The RandomAccessFile
class implements the DataInput and DataOutput interfaces for
performing I/O using the primitive data types. The RandomAccessFile
class also supports permissions like read and write
Q6.
Explain the following with examples: 4* 2 ½ = 10
1. The
Connection Objects
2. The
JDBC URL
3. The
ResultSet Object
4. Using
the PreparedStatement Object
Ans:
1. The Connection
Objects:
The Connection object
represents a connection with a database. You mayhave several Connection objects in an application that
Get fully solved assignment. Buy online from website
online store
or
plz drop a mail with your sub code
we will revert you within 2-3 hour or immediate
Charges rs 125/subject and rs 625/semester only.
if urgent then call us on 08791490301, 08273413412
