Week 5 (Interactivity)

Question 1

what is the preferred way to input a string?

Answer 1

getline(cin, inputLine);

Question 2

what is the syntax for the get line function

Answer 2

getline(, )

Question 3

how to get a char input and store it?

Answer 3

cin.get(ch); ch = cin.get

Question 4

how to ignore characters in the buffer?

Answer 4

cin.ignore(n,c);
(n= numbers of characters to skip)
(c = character)
skips n characters or until c is encountered

Question 5

how to get the length of a string?

Answer 5

integerIdentifier = stringIdentifier.length( )

Question 6

How to concatenate strings?

Answer 6

+

Question 7

What are c-strings?

Answer 7

Arrays of chars that act as strings.

Question 8

how do you copy strings with string objects?

Answer 8

strcpy(name2, name)

Question 9

how can you limit the amount of characters stored into a c-string

Answer 9

cin&raquo_space; setw(n)&raquo_space; word;

Question 10

How do you read in a whole line with c string?

Answer 10

cin.getline(arrayVariable, size)

Question 11

What to include math library functions

Answer 11

include

Question 12

what to include for random numbers

Answer 12

include

Question 13

what function to call to return a integer random number.

Answer 13

rand()

Question 14

what does a seed value do?

Answer 14

Helps generate random numbers

Question 15

How to set a seed value?

Answer 15

srand();

Question 16

how to make the seed value more random

Answer 16

seed = time(0);

Question 17

Five steps for file input:

Answer 17

Include header file
define file stream object
Open file
Use File (read/ write)
Close file

Question 18

what is the header file for file input?

Answer 18

include

Question 19

what are the types of objects for file input / output

Answer 19

ofstream - output file
ifstream - input file
fstream - file stream, input and output

Question 20

how do you open a file for input/output?

Answer 20

outfile/infile.open(“fileName.txt”);

Question 21

how to close file

Answer 21

outputFile.close();