Set - 2

Which Java collection class provides an ordered, index-based structure, but allows duplicate elements?

• Vector

• LinkedList

• ArrayList

• HashSet

What is the purpose of the 'transient' keyword in Java?

• It indicates that a variable cannot be changed

• It specifies that a variable is not part of the object's persistent state

• It is used to declare an immutable class

• It is used to define a variable that cannot be serialized

What will be the output of the following code?

int x = 5;

System.out.println(x > 2 ? x < 4 ? 10 : 8 : 7);

• 7

• It will not compile

• 8

• 10

If PENCIL is coded as 742956, how is PAPER coded?

• 81594

• 87514

• 81754

• 85714

A clock shows 3:45. What is the angle between the hour and minute hands?

• 120 degrees

• 112.5 degrees

• 150 degrees

• 135 degrees

Which of the following is a correct way to declare a constant in Java?

• static final int VALUE = 10;

• constant int VALUE = 10;

• final int VALUE = 10;

• const int VALUE = 10;

What will be the output of the following code snippet?

numbers = (4, 7, 19, 2, 89, 45, 72, 22)

sorted_numbers = sorted(numbers)

even = lambda a: a % 2 == 0

even_numbers = filter(even, sorted_numbers)

print(type(even_numbers))

• list

• tuple

• int

• filter

What will be the output of the following code snippet?

a = {'Hello':'World', 'First': 1}

b = {val: k for k , val in a.items()}

print(b)

• {'Hello':'World', 'First': 1}

• {'World': 'Hello', 1: 'First'}

• Can be both A or B

• None of the above

The difference between the compound interest and the simple interest on a certain sum for 2 years at 10% per annum is $50. What is the sum?

• $2000

• $1500

• $500

• $1000

What will be the output of the following code?

#include <stdio.h>

int main() {

char str[] = "Hello";

printf("%c", str[5]);

return 0;

}

• o

• Undefined behavior

• H

• e