ch4

Question 1

For which types can you use the + operator?

Answer 1

numeric primitives, String concatenation

Question 2

-= is a …?

Answer 2

compound operator

Question 3

Relational operators always result in a …?

Answer 3

boolean

Question 4

What happens if you use the instanceof operator accross different class hierarchies?

Answer 4

compiler error

Question 5

How is % called?

Answer 5

remainder operator / modulus operator

Question 6

Can you use the increment operator for a final variable?

Answer 6

No.

Question 7

What is the difference between the & and && operators?

Answer 7

&&: short-circuit => No unnecessary evaluations.