Technical Test - 2
1.What
modifiers are allowed for methods in an Interface?
a)abstract,
public b)abstract,private c)none
2 .Can there be an abstract class with no abstract
methods in it?
a)yes b)no
3. Can we instantiate an abstract class?
a)yes b)no
4. Is it possible to override the main method?
a)yes b)no
5. Can we create an object for an
interface?
a)yes b)no
6.
Is null a keyword?
a)yes b)no
7. out object is member of which class ?
a)PrintStream b)System
c)OutStream d)InStream
8.next() is a member of which class?
a)BufferReader b)DataInputStream c)Scanner
4)none
9. How we can access library classes members ________________
10. class x
{ public dis() {
System.out.println(“RISE@GSK”); }
Public static void
main(String[]args){
new x().dis();}
}
Guess the output
a)compile time error b)run time error c)RISE@GSK d)none
11. class MyClass
{
public void main(String[]args){
System.out.println(“RISE@GSK”);
}
}
a)compile time error b)run time error c)RISE@GSK d)none
|
12.
|
What is the value of "d" after this line of code has
been executed?
double d = Math.round ( 2.5 + Math.random() );
|
|||||||
|
|
a)2 b)3
c)4 d)2.5
|
||||||||||
|
14. You want subclasses in any package to have access to
members of a superclass. Which is the most restrictive access that
accomplishes this objective?
|
||||||||||
|
|
15.Which will legally declare, construct, and initialize an
array?
|
|||||||||||
|
|||||||||||
|
A.int [] myList = {"1", "2",
"3"}; B. int [] myList = (5, 8, 2); C. int myList [] [] =
{4,9,7,0};
D.
int myList[] = {4, 3, 7};
|
|||||||||||
