Complete Java SE 8 Developer Bootcamp - Operators: Part 1

The video tutorial covers Java operator precedence, explaining how different operators are prioritized in expressions. It provides examples of arithmetic and Boolean operators, emphasizing the importance of understanding precedence for exams. The tutorial also delves into bit shifting and bitwise operators, illustrating their use with binary representations. Finally, it discusses Boolean logic, short circuiting, and null checks, highlighting practical applications in programming.

In the expression 'int X = 3 + 2 * 5', what will be the value of X after execution?

• 25

• 13

• 10

• 15

Which operator is used to check for equivalency in Java?

• =

• ==

• !=

• ===

What does the '>>' operator do in Java?

• Left shift

• Right shift

• Bitwise AND

• Unsigned right shift

How does the unsigned right shift operator '>>>' differ from the signed right shift '>>'?

• It shifts bits to the left

• It fills the leftmost bits with zeros

• It does not shift bits

• It fills the leftmost bits with ones

What is the result of the bitwise AND operation between 8 and 10?

• 8

• 10

• 0

• 2

Which bitwise operator flips all the bits in a binary number?

• Complement

• AND

• OR

• XOR

What is the main advantage of using short-circuiting in Boolean expressions?

• It evaluates all conditions

• It prevents unnecessary evaluations

• It always returns true

• It always returns false

In a short-circuiting OR operation, when is the second operand evaluated?

• Always

• Never

• Only if the first operand is true

• Only if the first operand is false

What happens if you try to access a method on a null object reference in Java?

• It returns null

• It throws a NullPointerException

• It returns a default value

• It compiles successfully

Which logical operator is used to ensure both conditions are true in a Boolean expression?

• !

• &&

• ==

• ||