Manhattan Associates
COMPANY NAME : MANHATTAN ASSOCIATES
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DATE OF TEST : 17 Jan 2004
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PLACE OF TEST: Le Meridian hotel, Chennai
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MODE : Off-Campus
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DURATION : 50 Questions in 1.5 Hours of
Time)
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CATEGORY : JAVA - J2EE (2+ years experienced
category)
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MANHATTAN ASSOCIATES:
About the Company:
The company is in ITPL, Bangalore. And
around 200 people strong in India. The whole
company is around 1000 people strong
world-wide. It's a product based company and
dealing mostly with Supply-Chain management
and Data Warehousing.
Visit Company WebSite at : www.manh.com
How I applied:
2 weeks back, there was an advertisement in
"The Hindu-Opportunities" asking for 2 +
years of Java, J2EE experience. I sent my
resume to the given mail ID. Only selected
people are called for written test.
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TEST PAPER AND INTERVIEW PATTERN:
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There are 4 rounds:
Written Test
Technical Interview
CEO interview
HR interview
The Written test pattern:
50 Questions -- 1.5 hours of time.
Most of the questions are multiple choice.
The split up is :
EJB (10 Questions)
JAVA (20 Questions)
JSP (5 Questions)
MISLLENEOUS - XML, JDBC etc (5 Questions)
ANALYTICAL (5 Questions)
SQL (5 Questions)
Our written test is held on 17 Jan 2004 in
Le Meridian hotel, Chennai.
I have written down whatever questions I
remember so that it will be useful to those
who will be taking the test in future and
also for those appearing for J2EE
interviews.
I have given the questions in Written Test
and Technical Interview.
I didn't have the other interviews.
EJB
1) What is true about 'Primary Key class' in
Entity Beans ?
(a) Used to identify the entity bean based
on EJB type, Home Interface and Container
Context.
(b) Used to identify the entity bean based
on EJB type, Remote Interface and Container
Context.
(c) The definition of Primary Key class can
be deferred till deployment
2) The Home Interface in Entity beans
(a) Provides at least one create() method
(b) May not provide any create() method
(c) Provides at least one findByPrimaryKey()
method
(d) May not provide any findByPrimaryKey()
method
3) In CMP of Entity beans
(a) Constructor with no arguments is defined
(b) Constructor is not defined
4) What is the purpose of ejbLoad()
5) What is the purpose of ejbStore()
6) In EJB, when a system error occurs, which
exception is thrown ?
(a) EJBException
(b) RemoteException
7) In EJB, which of the following is an
application level Exception ?
(a) NullPointerException
(b) ArrayOutOfBoundsException
(c) CreateException
(d) ObjectNotFoundException
(e) All the above
(f) None of the above
8) CMP bean provides
(a) Empty implementation of ejbLoad() and
ejbStore()
(a) Concrete implementation of ejbLoad() and
ejbStore()
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JSP and Mislleneous
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1) What is the purpose of XSL
(a) Convert XML to HTML
(b) Convert HTML to XML
ANS: (a)
2) resultSet has the following methods
(a) next()
(b) first()
(c) a & b
(d) No methods
3) In WebLogic clusters, what is the load
balancing algorithm ?
(a) RoundRobin
(b) FIFO
(c) LIFO
ANS: (a)
WebLogic uses a Round-Robin strategy as
default algorithm for forwarding the HTTP
requests inside a cluster. Weight-based and
random algorithms are also available.
4) How many Queues does a MDB listen to ?
(a) 1
(b) 2
(c) Any Number
(d) 10
ANS: (a)
An MDB can be associated with only one Queue
or Topic
5) Where is the Deployment Descriptor placed
?
(a) WEB-INF directory
(b) WEB-INF/CLASSES directory
(c) It will be mentioned in CLASSPATH
(d) The place can be specified in
APPLICATION.xml
6) To denote distributed applications, What
is the tag used in Deployment Descriptor ?
(a) distributable
(d) distributed="true"
(c) both a & b
7) Can a JSP be converted to SERVLET and the
vice versa always ?
(a) YES
(b) NO
8) Empty JSP Tag definitions are given in
Deployment Descriptor. Then which of the
following syntaxes are correct ?
(I don't remember the options)
9) One small question on <jsp:useBean> tag
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JAVA
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1) Which of the following 2 methods executes
faster ?
class Trial {
String _member;
void method1() {
for(int i=0;i<2048;i++) {
_member += "test";
}
}
void method2() {
String temp;
for(int i=0;i<2048;i++) {
temp += "test";
}
_member = temp;
}
}
(a) method1()
(b) method2()
(c) Both method1() and method2() takes same
time for execution
ANS: (b)
Accessing method variables requires less
overhead than accessing class variables.
2) Integer.parseInt("12a") returns
(a) Exception
(b) 1
(c) 0
(d) -1
ANS: (a)
3) By default, Strings to functions are
passed using the method
(a) Call by Value
(b) Call by Reference
(c) Strings cannot be passed to function
ANS: (b)
String is a class defined in java.lang and
in java all classes are passed by reference.
4) What is the difference between OVERRIDING
and OVERLOADING
5) What is the output of following program ?
class Test {
public static void main(String args[]) {
for(int i=0;i<2;i++) {
System.out.println(i--);
}
}
}
(a) Goes into infinite loop
(b) 0,1
(c) 0,1,2
(d) None
ANS: (a)
6) 't' is the reference to a class that
extends THREAD. Then how to suspend the
execution of this thread ?
(a) t.yield()
(b) yield(t)
(c) yield()
(d) yield(100) where 100 is the milli
seconds of time
7) What is the functionality of instanceOf()
?
8) How many String objects are created by
the following statements ?
String str = " a+b=10 ";
trim(str)
str.replace(+,-);
(a) 1
(b) 2
(c) 3
(d) 4
ANS: (c)
Strings are immutable. So, for each String
operation, one new object is generated.
9) (A program is given. I don't remember
exactly)
An ABSTRACT class is declared and the code
is tried to instantiate it. The Question was
whether it's legal to do it or not ?
10) A question on "interface"
11) Cleaning operation in Java is done in
the method
(a) finally()
(b) finalize()
(c) final()
12) Question on whether Static method can be
overriden
13) How to prevent a class from being the
Base Class ?
(a) declare it as final
(b) declare it as static
14) If we want to read a very big text file
with so many mega bytes of data, what shall
we use ?
(a) FileInputStream
(b) InputStreamReader
(c) BufferedReader
15) One Question on Inner Classes.
16) One program on Overloading and
Overriding
17) A program given using try, catch and
finally and it is asked to find out which
statements get executed ?
18) What code, if written, below the (//code
here) will display 0.
class Test {
public static void main(String argv[]) {
int i=0;
//code here
}
}
(a) System.out.println(i++)
(b) System.out.println(i+'0')
(c) System.out.println(i--)
(d) System.out.println(i)
ANS: (a),(c),(d)
The option (b) displays the ASCII value of
'0'. So, the output in this case is: 48
19) What is the better way of writing the
Constructor with 2 parameters in the
following code:
class Test {
int x,y;
Test(int a) {
//Code for very complex operations will be
written
//in this place
x=a;
}
Test(int a, int b) {
//Code for very complex operations will be
written
//in this place (same code as in above
constructor)
x=a;
y=b;
}
}
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SQL
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2 Table Structures are given. (Something
like Employee ID, Salary, Department etc)
And there are 3 queries. I remember one
query.
Write query to find the employees with top 5
salaries ?
And there 2 more theoritical SQL questions
1) What is the difference between UNION and
UNION ALL ?
2) What is the difference between COMMIT and
ROLLBACK ?
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ANALYTICAL
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5 very easy Questions. Need not bother much
about it.
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TECHNICAL INTERVIEW
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1) Tell about yourself
2) Why do you want to leave the present
company ?
3) What do you know about our (Manhattan
Associates) company ?
4) About EJB types. CMP, BMP, Session,
Entity beans, their differences, when to use
what type of beans ?
5) Can a Client Context call ejbRemove()
method ?
6) Who calls the methods ejbLoad() and
ejbStore() and where the state information
is stored when they are called ?
7) Do you know about Sequence Diagrams in
UML ?
8) Which is faster in execution - JSP or
SERVLET ? Why ?
9) What is the difference between Callable
Statement and Prepared Statement?
10) Can we declare final method in abstract
class ?
11) Can we declare abstract method in final
class ?
12) What is the difference between Inner
Join and Outer Join ?
13) How can you pass an object of data from
one JSP to another JSP ?
ANS: Using Session or request.getParameter()
or Hidden Variables.
14) When these methods are used ?
ejbActivate(), ejbPassivate() and ejbRemove()
?
15) What is the difference between
ejbPassivate() and ejbRemove() ?
16) Can the same object of Stateless Session
bean be shared by multiple clients ?
17) Can the same object of Stateful Session
bean be shared by multiple clients ?
18) How do you manage transactions in EJB ?
19) What is the difference between
response.redirect() and forward and request
dispatcher ? Which is faster ?
20) In java, which has more wider scope ?
Default or Private ?
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123
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