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What is the output of this program?
5 6 5 6
5 6 5
Runtime error
Compilation error
SHOW ANSWERWhich of these is an incorrect string literal?
“Hello World”
“Hello\nWorld”
“\”Hello World\””
”Hello
World”
SHOW ANSWERWhat is the output of this program?
class dynamic_initialization
{
public static void main(String args[])
{
double a, b;
a = 3.0;
b = 4.0;
double c = Math.sqrt(a * a + b * b);
System.out.println(c);
}
}
5.0
25.0
7.0
Compilation Error
SHOW ANSWERWhich of these is necessary condition for automatic type conversion in Java?
The destination type is smaller than source type
The destination type is larger than source type
The destination type can be larger or smaller than source type
None of the mentioned
SHOW ANSWERIf an expression contains double, int, float, long, then the whole expression will be promoted into which of these data types?
long
int
double
float
SHOW ANSWERWhat is the output of this program?
class A
{
final public int calculate(int a, int b) { return 1; }
}
class B extends A
{
public int calculate(int a, int b) { return 2; }
}
public class output
{
public static void main(String args[])
{
B object = new B();
System.out.print("b is " + b.calculate(0, 1));
}
}
b is : 2
b is : 1
Compilation Error
An exception is thrown at runtime
SHOW ANSWERWhat is the output of this program?
class c
{
public void main( String[] args )
{
System.out.println( "Hello" + args[0] );
}
}
Hello c
Hello
Hello world
Runtime Error
SHOW ANSWERWhich of these operators is used to allocate memory to array variable in Java?
malloc
alloc
new
new malloc
SHOW ANSWERWhich of these is an incorrect array declaration?
int arr[] = new int[5].
int [] arr = new int[5].
int arr[] = new int[5].
int arr[] = int [5] new
SHOW ANSWERWhat will this code print?
0
value stored in arr[0].
Class name@ hashcode in hexadecimal form
00000
SHOW ANSWERWhich of these is an incorrect Statement?
It is necessary to use new operator to initialize an array
Array can be initialized using comma separated expressions surrounded by curly braces
Array can be initialized when they are declared
None of the mentioned
SHOW ANSWERWhich of these is necessary to specify at time of array initialization?
Row
Column
Both Row and Column
None of the mentioned
SHOW ANSWERWhat is the output of this program?
class array_output
{
public static void main(String args[])
{
int array_variable [] = new int[10];
for (int i = 0; i < 10; ++i)
{
array_variable[i] = i;
System.out.print(array_variable[i] + " ");
i++;
}
}
}
0 2 4 6 8
1 3 5 7 9
0 1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9 10
SHOW ANSWER
