1 |
h02 |
CS16 W20 |
Name: | ||||
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(as it would appear on official course roster) | ||||
Umail address: | @umail.ucsb.edu | section |
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Optional: name you wish to be called if different from name above. | ||||
Optional: name of "homework buddy" (leaving this blank signifies "I worked alone" |
h02: Chapter 2: Variables and assignments, Input/output, Data types and expressions, Simple flow control
ready? | assigned | due | points |
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true | Wed 01/08 09:00AM | Wed 01/15 11:59PM |
You may collaborate on this homework with AT MOST one person, an optional "homework buddy".
UPLOAD A PDF OF YOUR ANSWERS TO GRADESCOPE BEFORE THE DUE DATE. ASSOCIATE EACH QUESTION WITH A SPECIFIC PAGE IN YOUR HOMEWORK AT THE TIME OF SUBMISSION. There is NO MAKEUP for missed assignments;
Please:
- No Staples.
- No Paperclips.
- No folded down corners.
Complete your reading of Chapter 1, section 1.3 pages 27-32, Chapter 2 sections 2.1 thru 2.4.
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1. (6 pts) The author describes the difference between "syntax errors" and "logic errors", and also the difference between syntax errors that produce an "error message" vs. those that produce a "warning message". Briefly explain each of the items below in a way that makes the DIFFERENCES among them clear:
i. Syntax errors that result in an error message:
ii. Syntax errors that result in an warning message:
iii. Logic errors:
2. (2 pt) If the following statement were in a C++ program, what would it do?
cout >> "I love oranges and apples";
3. (2 pt) If the following statement were in a C++ program, what would it do?
cout << "The world goes round and round"
4. (4 pts) Show 2 different ways to initialize variables in C++?
5. (2 pts) Is this variable declaration statement in C++ a good one? Why or why not?
double int=30;
#include <iostream>
int main(){
int a , sumPositive, sumNegative;
string promptContinue ="\nTo continue enter Y/y\n";
string promptNum = "\nEnter a number: ";
char response;
while (response = 'y'||`Y') {
cout << promptNum;
cin >> a;
if(a)
sumPositive+=a;
else
sumNegative+=a;
cout<< promptContinue;
}
cout<< "Sum of all the positive numbers is: "<< sumPositive<<endl;
cout<< "Sum of all the negative numbers is: "<< sumNegative<<endl;
return 0;
}