Forwarded from Advanced JAVA
HTML, CSS, Ajax, Bootstrap, Javascript, jQuery Notes.zip
13 MB
public class Program
{
public static void main(String[] args) { System.out.println(fun()); } static int fun(){ return 20; } }
{
public static void main(String[] args) { System.out.println(fun()); } static int fun(){ return 20; } }
Anonymous Quiz
71%
20
10%
10
3%
30
16%
Compile time error
public class Program
{
static int var=5; public static void main(String[] args) { System.out.print(var--+" "); if(var) main(args); } }
{
static int var=5; public static void main(String[] args) { System.out.print(var--+" "); if(var) main(args); } }
Anonymous Quiz
52%
5 4 3 2 1
16%
1 2 3 4 5
20%
Runtime Error
12%
Compile time error
public class Program
{
static int var=5; public static void main(String[] args) { System.out.println(var-- +); if(var!=0) main(args); } }
{
static int var=5; public static void main(String[] args) { System.out.println(var-- +); if(var!=0) main(args); } }
Anonymous Quiz
42%
5 4 3 2 1
8%
1 2 3 4 5
38%
Runtime Error
13%
Compile Time Error
which of the following statement considered to be a disadvantage of using a cursor?
Anonymous Quiz
25%
Fetching a row from the cursor may result in a network round trip
38%
Cursor doesn't allow to update the record
38%
Cursor can only run from a trigger
How will you return number of records in "orders" table?
Anonymous Quiz
23%
SELECT COUNT() FROM ORDERS
9%
SELECT SUM(*) FROM ORDERS
50%
SELECT COUNT(*) FROM ORDERS
18%
SELECT SIZE() FROM ORDERS
public class TestComp {
public static void main(String args[]) { int x = 1; System.out.println("The value of x is " + (~x >> x) ); } }
public static void main(String args[]) { int x = 1; System.out.println("The value of x is " + (~x >> x) ); } }
Anonymous Quiz
20%
1
20%
2
55%
-1
5%
-2
The default value of a static integer variable of a class in Java is,
Anonymous Quiz
50%
0
13%
1
17%
Garbage Value
21%
Null
0%
-1
What will be printed as the output of the following program?
public class testincr
{ public static void main(String args[]) { int i = 0; i = i++ + i; System.out.println("I = " +i); } }
public class testincr
{ public static void main(String args[]) { int i = 0; i = i++ + i; System.out.println("I = " +i); } }
Anonymous Quiz
19%
0
48%
1
10%
2
10%
3
14%
Compile time error
Which statement is not true in java language?
Anonymous Quiz
9%
A public member of a class can be accessed in all the packages.
52%
A private member of a class cannot be accessed by the methods of the same class.
35%
A private member of a class cannot be accessed from its derived class.
4%
A protected member of a class can be accessed from its derived class.
0%
None of the above.
To prevent any method from overriding, we declare the method as,
Anonymous Quiz
21%
Static
8%
Const
38%
Final
21%
Abstract
13%
None of these
Which one of the following is not true?
Anonymous Quiz
8%
A class containing abstract methods is called an abstract class.
17%
Abstract methods should be implemented in the derived class.
33%
An abstract class cannot have non-abstract methods.
29%
A class must be qualified as ‘abstract’ class, if it contains one abstract method.
13%
None of these
The fields in an interface are implicitly specified as,
Anonymous Quiz
15%
static only
4%
Protected
15%
Private
58%
Both static and final
8%
None of the above
public class testmeth
{
static int i = 1; public static void main(String args[]) { System.out.println(i+” , “); m(i); System.out.println(i); } public void m(int i) { i += 2; } }
{
static int i = 1; public static void main(String args[]) { System.out.println(i+” , “); m(i); System.out.println(i); } public void m(int i) { i += 2; } }
Anonymous Quiz
25%
1,3
25%
3,1
15%
1,1
15%
1,0
20%
None of the above