Lecture 9

Question 1

Literals

Answer 1

Specific fixed values of some type

Question 2

Concatenation

Answer 2

When two things are combined without any spaces. + is the concatinatuon operator for string type variables.

Question 3

Overload

Answer 3

When an operator has a different meaning for different variable types (e.g. + is concatenate for srings and addition for integers)

Question 4

Operator overload

Answer 4

When an operator is overloaded

Question 5

Append

Answer 5

When something is added to the end.

Question 6

Strings

Answer 6

Variable type with text. String library needs to be #included. Text needs to be enclosed in double quotations.

Question 7

Getline function

Answer 7

Allow us you to input data to a string type variable in the form:
Getline(in, variable name)

Question 8

Rules for adding string literals and variables

Answer 8

Two string variables or a string variable and literal can be used, but adding two string literals may result in an error.

Question 9

Char

Answer 9

Character variable type. Is a single number, letter, symbol, etc. Does not need to be #included. Value only needs to be enclosed in one quotation mark.

Question 10

String relationship to vectors

Answer 10

Strong is an array or vector of characters with 0 in the last element to indicate the end of the string. This is why they can’t be added.

Question 11

String functions

Answer 11

At and size can be used as well as length.

Question 12

How strings are compared

Answer 12

Each character is compared and the first characters that are different are analyzed based on their ASCII number. The larger number is considered greater.

Question 13

String member functions

Answer 13

1. Empty() returns true if string is empty
2. Find() searches for a string in another string and returns the location
3. Substr() takes in arguments for starting position and length and returns the string at that location
4. Replace() replaces part of a string with another string.