Practice Test

Which of the following is the first step in problem-solving?

• a) writing code

• b) testing and debugging

• c) identifying the problem

• d) creating an algorithm

Which data type is used to store a single character in Java?

• a) double

• b) char

• c) int

• d) String

Which operator is used to compare the equality of two values?

• a) ==

• b) =

• c) !=

• d) ===

Which loop construct is guaranteed to execute at least once, regardless of T/F?

• a) for

• b) while

• c) if-else

• d) nested-if

• e) do-while

Which of the following is NOT a valid variable name in Java?

• a) _profit

• b) #profit

• c) profitCurrent

• d) intProfit

What is the output of the following code?

int x = 5;

System.out.println(x++);

• a) 6

• b) 5

• c) 0

• d) compilation error

Which access specifier has the widest scope?

• a) public

• b) private

• c) default

• d) protected

Which access specifier has the second smallest scope?

• a) public

• b) private

• c) default

• d) protected

Which is an example of a logical operator?

• a) ==

• b) ||

• c) >=

• d) %

What is the purpose of an algorithm?

• a) To write a code for a specific language

• b) To help debug a program

• c) To write a step-by-step solution to a problem

• d) To make coding harder