Exam (elaborations)
AP Computer Science A Unit 4 Study Guide
- Course
- Institution
AP Computer Science A Unit 4 Study Guide
[Show more]
Content preview
AP Computer Science A Unit 4 Study Guideint a = 0;
int b = 0;
while (a < 5 && b < 3) {
System.out.println(a + " " + b);a++;b++;
}
What is output? - Answer -0 0 1 1 2 2
int n = 14;
while (!(n % 3 == 0 && n % 5 == 0)) {
System.out.println(n);
n += 2;
}
What is the last number printed by this code? - Answer -28
What is one potential problem with the following loop?
System.out.print("Enter integers. Enter -1 to exit.");
System.out.println(" Count of integers entered will be returned.");
int n = 0;
int c = 0
;while (n != -1) {
n = scan.nextInt();
c++;
}
System.out.println(c); - Answer -The loop counts when the user enters -1 into the keyboard, so the count will be one too many.
What is one potential problem with the following loop?
int n = 5;
while (n != -1) {
System.out.println(n);
} - Answer -Since n does not change the loop will not stop.
int n = 4;
while (n <= 15) {
n += 2;
System.out.print(n + " ");
}
What is output? - Answer -6 8 10 12 14 16
int n = 80;
while (n > 40) {
System.out.print(n % 10 + " ");
n -= 5;
}
What is output? - Answer -0 5 0 5 0 5 0 5
What is output to the screen by the following code:
int n = 3;
while (n < 7)
{
n++;
System.out.print(n + " ");
} - Answer -4 5 6 7
What is output to the screen by the following code:
int n = 10;
while (5 < n)
{
n--;
System.out.print(n + " ");
} - Answer -9 8 6 7 5
Often on the AP exam they ask you to print out the first and last number printed by a loop. What are the first and last values printed by:
int n = 5;
while (n < 32) {
n += 5;
System.out.print(n + " ");
} - Answer -10 35
What are the first and last numbers printed by the following code:
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller millyphilip. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67096 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now