CS 1200 Lec

Array

Array

a collection of consecutive memory locations

Name and Type

Array is a group of variables with the same ___ and ___

datatype arrayname[size];

syntax for declaring arrays

0

If there is not enough values in the array, elements are set to ____

Number of Values

If size is not explicitly defined, the size is determined by the _________

Access Array Elements

procedure where the index of an array element is specified

arrayname [index]

syntax for accessing array elements

0 to size-1

Elements of an array are indexed from ____ to ____

Constant, Variable, or any Integer Expression

Index may be ____, ____, or ____.

False

True or False. C checks array bounds.

Array of arrays

Multidimensional arrays are also called as _____.

Row and Column

In a matrix named M, it is referenced as M[x][y]. What does x and y represent?

False. ‘Di pweds i-omit ‘yong size ng column, pero okay lang if row (e.g., int c[][3]={{1,3,0},{2,5,7}};)

True or False. One of the ways in initializing a 2D array is

int c[2][]={{1,3,0},{2,5,7}};

True

True or False. One of the ways in initializing a 2D array is:

int c[2][3]={1.3.0.-1.5,9};

String

array of characters

NULL Character

String is terminated by a ________.

String Constant

String Literals is also called as ______.

Double Quotes

String literals are enclosed in a ______.

Placeholder or Format Specifier

%s is the _____ for strings.

Splicing

In C programming, it is used if the string literal contains a big sentence to the point where it reached a new line in the code.

Backslash

syntax of splicing which contains 4 spaces or indentations

First character

In C, compiler treats a string literal as a pointer to the ______.

String Variable

single array of characters that is capable of holding a string at a time

False

True or False. We can modify string literals.

scanf()

_____ is a function that does not store the white space characters in the string variable.

%ns

A way to set the limit of scanf() for the number of characters to be stored in the character array.

<string.h>

A library that contains all the required functions for performing string operations.

strcpy()

A function that is used to copy a string pointed by a source (including NULL character to the destination (character array).

True

True or False. In the strcpy(str1,str2), if the length of the string pointed by str2 is greater than the length of the character array str1 then it will be an undefined behavior.

strcpy(destination,course);

syntax of strcpy() function

strncpy(destination, source, sizeof(destination));

syntax of strncopy() function

strlen()

A function that is used to determine the length of the given string.

False

strlen() counts the NULL character.

strcat()

string concatenate function

strcat()

A function that appends the content of string str2 at the end of the string str1.

strncat()

A safer version of strcat.

strncat()

A function that appends the limited number of characters specified by the third argument passed to it.

False

strncat() function does not automatically add NULL character at the end of the resultant string.

strncat(str1, str2, sizeof(str1) - strlen(str2) - 1);

syntax of strncat()

strcmp ()

string comparison function

less than

strcmp() returns a value that is ____ 0, if s1 < s2

greater than

strcmp() returns a value that is _____ 0, if s1 > s2

equal to

strcmp() returns a value that is ____ 0, if s1 == s2

65 to 90

range of ASCII codes of upper case letters

97 to 122

range of ASCII codes of lower case letters

48 to 57

range of ASCII codes of 0 to 9 digits

32

ASCII code of space character