1) What will be the output for the program?
Declare
Var number;
Begin
Var:=null;
For var in 10..100
Loop
Dbms_output.put_line(var);
End loop;
Dbms_output.put_line(var);
End;
2) Which is a wrapper class?
a) float
b) char
c) int
d) bool
3) Predict the output
Class sample
{
Public static void main(string args)
{
}
}
4) Class A
{
A()
{
}
}
Class B
{
B()
{
}
}
Class C
{
Public static void main(string[] args)
{
}
}
5) Class test
{
Public static void main(string[] args)
{
int one=1;
int two=2;
system.out.println(“Parvathi”+one+two);
}
}
6) Attribute in an applet tag is _________________
a) codeclass
b) codename
c) codebase
d) none
7) Attribute in an applet tag is _________________
a) length
b) width
c) class
d) breadth
8) Default trigger is ____________
9) Class loader is in ____________
10) <%int a=10;%>
<%=a%>
11) The description of an instance is
a) method
b) property
c) keyword
d) literal
12) JSP expression is represented by ___________
a) <% %>
b) <%0 %>
c) <% ! %>
d) <% = %>
13) JSP directive is represented by ___________
a) <% %>
b) <%0 %>
c) <% ! %>
d) <% = %>
14) select ename from emp where ename like ‘%s%s%o’ ESCAPE’%’;
15) Try to add the value 3000 to the column which is declared as number(3)
16) Client bean call session bean and connect directly to the database
- true
- false
17) log() method is available in which interface?
18) If <DOCBASE> is declared in a html page for the appearance of font color etc., then <font> attribute overwrite the docbase attribute
19) Which is the serializable interface
a) object
b) method
c) classes
d) state
20) A procedure consists of all parameters as IN parameter which is declared/defined in the packages. If we want to change the IN parameter as OUT parameter, then what we have to do?
a) in Package Specification
b) in package body
c) both
d) none of the above
21) class A
{
A()
{
}
}
Class B extends A
{
B()
{
}
}
Class C
{
Public static void main(string args[])
{
}
What will be the output?
a) compile time error
b) run time error
c) both compile and run time error
d) none of the above
22) If a table has 2 columns with NOT NULL and UNIQUE constraints on it ..what will be the candidate/ primary key?
a) both are called candidate key
b) one can be a primary key
c) one can be a candidate key
d) none of the above
23) What will specify IS A relationship?
a) IS A
b) Extends
c) Volatile
d) Instance of
24) Abstract class can be ___________
a) subclass
b) instantiated
c) none
d) final
25) Super key can be of __________
a) primary key + a non key
b) unique key + a non key
c) candidate key + a non key
d) none of the above
26) Implicit cursors will be used in __________
a) select query
b) update query
c) delete query
d) all the above
27) comparison operator in SQL
a) =
b) *
c) $
d) #
28) What will be the column heading for the given query?
SELECT sal*10 supply FROM emp;
a) supply
b) Supply
c) SUPPLY
d) sal*10
29) Class sample
{
Public Static Void Main(string a[])
{
int one=1,two=2;
System.Out.Println(one+”Hello”+two);
}
}
a) 1+Hello+2
b) One+Hello+two
c) Hello
d) None of the above
30) The syntax for the frame _______________
a) frame is declared within the body
b) frameset is declared within body
c) frame is declared within frameset
d) frameset is declared within frame
31) How to give the title to a table?
a) <title>
b) <head>
c) <caption>
d) <body>
32) How to give the italics style in html
a) <ii>
b) <it>
c) <i>
d) <italics>
33) _____________ is the superclass of all classes that are in input streams.
a) output stream
b) input stream
c) buffered o/p stream
d) object output stream
34) What is the immediate superclass of panel?
a) window
b) component
c) container
d) object
35) ____________ class is a wrapper class for the character data type.
a) char
b) character
c) CHAR
d) CHARACTER
36) What will be the output for the given query?
SELECT ‘wipro’ FROM dual where NULL is NULL;
a) Wipro
b) Error
c) No output
d) Null values
37) ______________ is a single occurrence of entity type
a) row
b) column
c) instance
d) none of the above
38) SELECT empno|| ‘ ‘||eage||’ ‘||edate||’ ‘||Hiredate from emp;
a) Datatype mismatch
b) It will display all the columns it mentioned
c) Error
d) No output
39) Which operator is used as a termination operator in SQL?
a) ;
b) @
c) #
d) !
40) Write a subquery to select a department where there are no employees in it.
41) Transaction is ____________
a) group of DML statements that can’t be rolled back
b) group of DML statements on a single table
c) group of DML statements on different tables of same schema
d) group of DML statements that are executed (all) or none
42) Vector v=new vector(10);
What will be the next line?
a) v.addElement(10);
b) v.add(10);
c) v.addElement(new Integer(10))
d) v.addElement(Integer(10))
43) Output and input streams are __________ classes
a) static
b) final
c) abstract
d) concrete
44) %rowcount gives __________
a) no of rows in the table
b) no of rows processed so far
c) none of the above
d) both a and b
45) In a table tag, which option is used to get the space between table border and cells?
a) cellspacing
b) cellpadding
c) rowspan
d) colspan
46) Return type of getparameter(string) is ____________
a) string
b) object
c) int
d) character
47) abstract class A
{
abstract void m1();
abstract void m2();
}
abstract class B extends A
{
void m1()
{
};
}
Class C extends A
{
void m2()
{
}
}
Class D
{
Public Static Void Main()
{
C c1=new C();
C.m2();
}
a) compiler time error
b) runtime time error
c) logical error
d) none of the above
48) Interface sample
{
abstract void m2(){ };
}
Class A implements Sample
{
Public Void m1() //line1
}
Class B implements Sample{ void m1(int j){ }} //line 2
Class C implements Sample{ void m2(int i){ }} //line 3
Which line(s) will throw error?
a) Line 1
b) Line 2
c) Line 2 and Line 3
d) Line 3
49) What is the return type of execute()
a) result
b) resultset
c) int
d) Boolean
50) Servlet is ___________
a) j2ee application
b) CGI
c) Java API
d) Netscape
51) Implicit savepoint is created
a) when a transaction starts
b) when user starts a session
c) when the user logs off the session
d) none of the above
52) What is the relationship in the network model?
a) 1:1
b) 1:M
c) M:1
d) M:M
53) __________ is a Type II driver
54) ___________ is a Type I driver
55) When the index is removed, _________________
a) only the index is dropped
b) both the table & index gets dropped
c) table becomes invalid
d) none of the above
56) When the sequence is removed, _________________
a) only the index is dropped
b) both the table & index gets dropped
c) table becomes invalid
d) none of the above
57) Write the sequences of stages while creating the cusors
58) Classloader is a part of ______________
a) JNI
b) JVM
c) JSM
d) None
59) The argument for the service method
a) service(HttpRequest,HttpResponse)
b) service(HttpResponse,HttpRequest)
c) service(ServletRequest,ServletResponse)
d) service(ServletResponse,ServletRequest)
60) The package of Generic Servlet is ____________
a) Java.Servlet
b) Javax.Servlet
c) Javax.Servlet.generic
d) Javax.Servlet.http
61) If you are changing the code in the procedure,the previous procedure code and the changed source code will be in ______________
a) USER_DEPENDENCIES
b) USER_PROCEDURE
c) USER_SOURCE
d) USER_SOURCECODE
62) ISA relationship in Java is indicated as _________
a) extend
b) extends
c) ::
d) Isa
63) Array in java is ____________
a) string of characters
b) string of numbers
c) reference type
d) primitive datatype
64) What is the superclass of Exception?
65) Class super
{
int i=10;
void display()
{
System.Out.Println(i);
}
}
Class sub extends super
{
int j=10;
void getmethod()
{
i=20;
System.Out.Println(i);
}
}
Public Static Void Main(string args[])
{
Super obj=new sub();
Obj.getmethod();
}
66) Interface A
{
void display();
}
Class B implements A
{
Public void display(){} //line 1
Private void display(){}//line 2
Protected void display(){}// line 3
}
Which is invalid?
a) line 1
b) line 2
c) line 3
d) All the above
67) What is true about ORACLE?
a) It will detect the deadlock & handles it rather than preventing
b) It will not allow other user to read the data when one is already reading
68) Interface A()
{
void ABC()
}
Class B implements A
{
void ABC()
{
int i=10;
}
void display()
{
System.Out.Println(i);
}
}
Public Static Void Main(string args[])
{
A obj=new B();
Obj.ABC();
Obj.display();
}
69) Which is not primitive data type?
a) int
b) long
c) short
d) char
70) In “emp” table, there are null values for some of the columns in all the rows. Totally there are 14 rows in the table. What will be the output if the given query is executed?
SELECT 5000 FROM emp;
a) Null is printed only once
b) NULL will be printed 14 times null
c) 5000 will be printed 14 times
d) rror
71) which provides transaction?
a) RMI
b) JNDI
72) What is true about EntityBean(EB) and SessionBean(SB)?
a) EB is the superclass of SB
b) Sb is the superclass of EB
c) EB is accessible to all the users of SB which is session specific
d) None
73) Predict the output for the given query:
SELECT * FROM emp where ename between ‘A’ and ‘C’;
74) Emp Table has 3 columns like Empno,Ename,Passport….All the columns are unique. Which key can be considered as a primary key?
a) All the three
b) None
c) empno
d) Passport
75) Dependent entity should have __________
a) same data type as the parent
b) differs in their datatype from the parent one
c) we can’t create a dependent enitity
d) none of the above
76) The Main difference between the anonymous block and the procedure
e) We can’t define %rowtype in anonymous block but it is possible in procedure
f) Anonymous block is not an object but procedure is an object
77) Which of the following is/are true?
i) subquery will return more than one value
ii) Subquery should be declared on the right hand side of the operator
a) i only
b) ii only
c) both i and ii
d) neither i nor ii
78) Class can be declared as Abstract class by prefixing the keyword __________
Ans: abstract
79) We can’t use final in __________
a) class
b) methods
c) variable
d) constructor
80) Can we use operators in for loop
a) we can’t use it for loop
b) we have to declare it before, when we use it
c) Infinite loop
d) None of the above
81) Locks in oracle can be ___________
a) Row level
b) Table level
c) Both row and table
d) None of the above
82) TABLESPACE is _______________
a) Default system space is called tablespace
b) Each user may have tablespace
c) There is no concept called TABLESPACE in oracle
d) Collection of DataBases
83) ER diagram is _______________
a) high level model
b) low level model
c) representational model
d) hierarchical model
84) The Function of LGWR
85) Which file is responsible for transaction recovery?
a) data file
b) control file
c) redologfile
d) archive file
86) What will getparametervalue() will return?
87) When will the scriplet tag(<% %>) will execute?
a) compilation time
b) run time
c) translation time
d) none
88) What will int=execute() do?
a) compiler error
b) runtime error
c) It wont return any value
d) none
89) What will int=executeQuery() do?
a) compiler error
b) runtime error
c) It wont return any value
d) none
90) What will int=executeupdate() do?
a) compiler error
b) runtime error
c) It wont return any value
d) none
91) Interface I1{ }//line1
Interface I2{ }// line 2
Interface I1 extends I2//line3
Which line(s) produce the error?
a) line 1 & 2
b) line 3
c) line 2
d) all the three
92) What are the comments available in java?
93) What will happen if the given line is executed?
For &variable in 1..20
a) Error
b) loop executes for 20 times
c) infinite loop
d) None of the above
Please write answers for each question
ReplyDeleteplease let us know all the answers
ReplyDeletepls send me the answers i am in needd plss
ReplyDeleteI havent any word to appreciate this post.....Really i am impressed from this post....the person who create this post it was a great human..thanks for shared this with
ReplyDeleteus.
Java and J2EE Training in Chennai - AmitySoft
where can i find the answers for these?
ReplyDeleteI am not sure where you're getting your info, but great topic. I needs to spend some time learning more or understanding more. Thanks for magnificent information I was looking for this info for my mission.
ReplyDeleteplasma injections for hair loss
hair growth injections
hair regeneration injection
plasma treatment for hair loss
prp injections hair loss
prp treatment hair loss
platelet rich plasma therapy for hair
scalp injections for hair growth
plasma rich platelet therapy for hair loss
prp treatment for hair growth
injections for hair regrowth
prp for hair restoration
platelet therapy for hair loss
prp injection for hair growth
prp platelet rich plasma hair loss treatment
great
ReplyDeleteplz send all answers
ReplyDeletekindly send answer for this question to karuppuchamy89@gmail.com
ReplyDeletePlz share the answers
ReplyDeleteplease share the answers
ReplyDeletePlz share answers
ReplyDelete