Exam Details
| Subject | core java (old cgpa) (paper – iii) | |
| Paper | ||
| Exam / Course | b.sc. – i (ecs) | |
| Department | ||
| Organization | solapur university | |
| Position | ||
| Exam Date | November, 2018 | |
| City, State | maharashtra, solapur |
Question Paper
B.Sc. III (Semester Computer Science Examination, 2018
core java (Old CGPA) (Paper III)
Day and Date Tuesday, 20-11-2018 Total Marks 70
Time 2.30 p.m. to 5.00 p.m.
Instructions All questions are compulsory.
Figure to the right indicates full marks.
1. Multiple choice questions 14
Java compiler requires a source file of extension.
.txt .java
.doc .applet
keyword prevents a method in a super class from being
overridden by its subclass.
super abstract
static final
All exception classes inherit class.
Exception Error
Throwable All of these
member of a class are accessible outside the class, but within
the same package.
Public Private
Protected All of these
Method overloading in java enables to define a method with
Different number of arguments
Different types of arguments
Either different number or different types of arguments
Different number and types of arguments
Set P
is the default priority of thread.
NORM_priority de fault_pr ior ity
min_pr ior ity ma x_pr ior ity
of the following is the Wrapper class.
int Float
char double
package is used for collection framework classes.
java.applet java.awt
java.event java.util
layout arranges components into rows and columns.
Border Flow
Grid None of the above
10) is a name given to a variable, class or method.
Constant Reference
Identifier Modifier
11) type of listener is used for handling button click events
MouseListener ItemListener
Keylistener ActionListener
12) classes are used for input and output operation on
characters.
InputStream and OutputStream Reader and Writer
Both a and b None of these
13) method is used to add element in Vector.
addElement()
insert()
14) API stands for
Application programming interface
Application programming interaction
Application programming integration
None of these
2. Answer the following (Any four). 8
Define java as a garbage collected language.
Define thread synchronization.
Write about, why java is secure than
Define object class. State any two methods of Object class.
Define Hash Table. Write its constructors.
Write notes on (Any two). 6
Java Virtual Machine.
Uses of final keyword.
Method overloading.
3. Answer the following (Any Two). 8
Write an object oriented program to check the number is palindrome
or not.
What is exception Explain the types of exception.
Explain the use of static variable, static methods and static block with
example.
Answer the following (any one). 6
Explain the use of throw and throws keyword.
Explain java as complied and interpreted language.
4. Answer the following (Any Two). 10
Explain different types of wrapper classes.
Write a program to implement multiple inheritance using interface.
What is stream Explain different types of input output stream
classes.
Answer the following (any one). 4
What is applet Explain the life cycle methods of an applet.
Explain user defined exception with example.
5. Answer the following (any two). 14
Explain the life cycle of thread.
Write an event handling program to implement keylistener interface.
Write a program to demonstrate vector class.
core java (Old CGPA) (Paper III)
Day and Date Tuesday, 20-11-2018 Total Marks 70
Time 2.30 p.m. to 5.00 p.m.
Instructions All questions are compulsory.
Figure to the right indicates full marks.
1. Multiple choice questions 14
Java compiler requires a source file of extension.
.txt .java
.doc .applet
keyword prevents a method in a super class from being
overridden by its subclass.
super abstract
static final
All exception classes inherit class.
Exception Error
Throwable All of these
member of a class are accessible outside the class, but within
the same package.
Public Private
Protected All of these
Method overloading in java enables to define a method with
Different number of arguments
Different types of arguments
Either different number or different types of arguments
Different number and types of arguments
Set P
is the default priority of thread.
NORM_priority de fault_pr ior ity
min_pr ior ity ma x_pr ior ity
of the following is the Wrapper class.
int Float
char double
package is used for collection framework classes.
java.applet java.awt
java.event java.util
layout arranges components into rows and columns.
Border Flow
Grid None of the above
10) is a name given to a variable, class or method.
Constant Reference
Identifier Modifier
11) type of listener is used for handling button click events
MouseListener ItemListener
Keylistener ActionListener
12) classes are used for input and output operation on
characters.
InputStream and OutputStream Reader and Writer
Both a and b None of these
13) method is used to add element in Vector.
addElement()
insert()
14) API stands for
Application programming interface
Application programming interaction
Application programming integration
None of these
2. Answer the following (Any four). 8
Define java as a garbage collected language.
Define thread synchronization.
Write about, why java is secure than
Define object class. State any two methods of Object class.
Define Hash Table. Write its constructors.
Write notes on (Any two). 6
Java Virtual Machine.
Uses of final keyword.
Method overloading.
3. Answer the following (Any Two). 8
Write an object oriented program to check the number is palindrome
or not.
What is exception Explain the types of exception.
Explain the use of static variable, static methods and static block with
example.
Answer the following (any one). 6
Explain the use of throw and throws keyword.
Explain java as complied and interpreted language.
4. Answer the following (Any Two). 10
Explain different types of wrapper classes.
Write a program to implement multiple inheritance using interface.
What is stream Explain different types of input output stream
classes.
Answer the following (any one). 4
What is applet Explain the life cycle methods of an applet.
Explain user defined exception with example.
5. Answer the following (any two). 14
Explain the life cycle of thread.
Write an event handling program to implement keylistener interface.
Write a program to demonstrate vector class.
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