AP Computer Science A – Unit 1 Primitive Types Practice Test
AP Computer Science A – Unit 1 Primitive Types Practice Test
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Question 1 of 19
1. Question
What data type would be best used to record the number of people at a party?
CorrectIncorrect -
Question 2 of 19
2. Question
What is the output for this statement?
System.out.print(“Good “);
System.out.print(“Morning!”);CorrectIncorrect -
Question 3 of 19
3. Question
What data type would be best used to record an email address?
CorrectIncorrect -
Question 4 of 19
4. Question
Consider the following code:
int a = 14;
int b = -15;
int c = 22;
int d = 11;
if(a > 12 && b < -14 && c < d) {
System.out.println(“YAY!!!!”);
} else if (d – 20 < b) {
System.out.println(“GO DO MORE PROGRAMMING!”);
} else if(a + 12 >= c) {
System.out.println(“This is vexing……”);
} else {
System.out.println(“This is very fun!”);
}}
What is the output for the code above?CorrectIncorrect -
Question 5 of 19
5. Question
What are the types of operators?
CorrectIncorrect -
Question 6 of 19
6. Question
What is the output for this statement?
System.out.println(“Good “);
System.out.println(“Morning!”)CorrectIncorrect -
Question 7 of 19
7. Question
Consider the code below:
int a = 24, b = 17, c = 5, d = 7;
b = b % d + a / b;
a %= b;
a -= 12;
What is the value of a at the end of the code above?CorrectIncorrect -
Question 8 of 19
8. Question
Which of the following is a valid variable declaration in Java?
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Question 9 of 19
9. Question
Which of the following declares a String array of size i? (Presume Java syntax.)
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Question 10 of 19
10. Question
What are the ways to create string objects in Java?
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Question 11 of 19
11. Question
What is the difference between double and int?
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Question 12 of 19
12. Question
What data type would be the answer to the expression x < 5?
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Question 13 of 19
13. Question
What is the difference between system.out.println() and system.out.print()?
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Question 14 of 19
14. Question
int x=2;
double y=2.1;
float z=3.0;
int c=(x*y) + z;
What is the value of cCorrectIncorrect -
Question 15 of 19
15. Question
Consider the following code:
int i = 55, j = 3;
System.out.println((i / j + 3) / 5);
What is the output for the code above?CorrectIncorrect -
Question 16 of 19
16. Question
int i = 100;
double d = 4.55, d2 = 3.75;int j = (int)(d * 100 + d2);
What is the value of j at the end of the code’s execution?CorrectIncorrect -
Question 17 of 19
17. Question
Consider the code below:
int[] vals = {841,-14,1,41,49,149,14,148,14};
boolean[] bools = new boolean[vals.length];
for(int i = 0; i < vals.length; i++) {
bools[i] = vals[i] > 20 && vals[i] % 2 == 0;
}
for(int i = 0; i < bools.length; i++) {
if(bools[i]) {
System.out.println(vals[i]);
}
}
What is the output of the code above?CorrectIncorrect -
Question 18 of 19
18. Question
Expressions cannot contain variables of different data types. True or false?
CorrectIncorrect -
Question 19 of 19
19. Question
string str = “Hello”
char newvar = str[4];
What is the value of newvar?CorrectIncorrect