# Quiz Discussion

On applying Left shift operator, <<, on integer bits are lost one they are shifted past which position bit?

Course Name: Java

• 1]

1

• 2]

32

• 3]

33

• 4]

31

##### Solution
No Solution Present Yet

#### Top 5 Similar Quiz - Based On AI&ML

Quiz Recommendation System API Link - https://fresherbell-quiz-api.herokuapp.com/fresherbell_quiz_api

# Quiz
1
Discuss

With x = 0, which of the following are legal lines of Java code for changing the value of x to 1?

   1. x++;
2. x = x + 1;
3. x += 1;
4. x =+ 1;
• 1]

1, 2 & 3

• 2]

1 & 4

• 3]

1, 2, 3 & 4

• 4]

3 & 2

##### Solution
2
Discuss

What should be expression1 evaluate to in using ternary operator as in this line?

 expression1 ?  expression2  :  expression3
• 1]

Integer

• 2]

Floating – point numbers

• 3]

Boolean

• 4]

None of the mentioned

##### Solution
3
Discuss

Which of these lines of Java code will give better performance?

   1. a | 4 + c >> b & 7;
2. (a | ((( 4 * c ) >> b ) & 7 ))
• 1]

1 will give better performance as it has no parentheses

• 2]

2 will give better performance as it has parentheses

• 3]

Both 1 & 2 will give equal performance

• 4]

Dependent on the computer system

##### Solution
4
Discuss

Which of these statements are incorrect?

• 1]

The left shift operator, <<, shifts all of the bits in a value to the left specified number of times

• 2]

The right shift operator, >>, shifts all of the bits in a value to the right specified number of time

• 3]

The left shift operator can be used as an alternative to multiplying by 2

• 4]

The right shift operator automatically fills the higher order bits with 0

##### Solution
5
Discuss

What will be the output of the following Java program?

    class Output
{
public static void main(String args[])
{
int a = 1;
int b = 2;
int c = 3;
a |= 4;
b >>= 1;
c <<= 1;
a ^= c;
System.out.println(a + " " + b + " " + c);
}
}

• 1]

3 1 6

• 2]

2 2 3

• 3]

2 3 4

• 4]

3 3 6

##### Solution
6
Discuss

What is the order of precedence (highest to lowest) of following operators?

    1. &
2. ^
3. ?:
• 1]

1 -> 2 -> 3

• 2]

2 -> 1 -> 3

• 3]

3 -> 2 -> 1

• 4]

2 -> 3 -> 1

##### Solution
7
Discuss

What will be the output of the following Java program?

    class Modulus
{
public static void main(String args[])
{
double a = 25.64;
int  b = 25;
a = a % 10;
b = b % 10;
System.out.println(a + " "  + b);
}
}

• 1]

5.640000000000001 5

• 2]

5.640000000000001 5.0

• 3]

5 5

• 4]

5 5.640000000000001

##### Solution
8
Discuss

Which of the following can be operands of arithmetic operators?

• 1]

Numeric

• 2]

Boolean

• 3]

Characters

• 4]

Both Numeric & Characters

##### Solution
9
Discuss

Modulus operator, %, can be applied to which of these?

• 1]

Integers

• 2]

Floating – point numbers

• 3]

Both Integers and floating – point numbers

• 4]

None of the mentioned

##### Solution
10
Discuss

Which operator is used to invert all the digits in a binary representation of a number?

• 1]

~

• 2]

<<<

• 3]

>>>

• 4]

^

# Quiz