The document explains that a string is a collection of characters, terminated by a null character ('\0'). It covers how strings can be declared as character arrays in programming, including their syntax and initialization methods. Additionally, it highlights the automatic addition of the null character in string declarations to signify the end of the string.

1. W
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E

2. S
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STRINGS
String is a collection of characters enclosed in between
double quotes.
Example:
“characters”
“Welcome to Strings”
String can also be called as character array. i.e., array of
characters
Every string implicitly terminated with a special character
called NULL ‘0’
According to ASCII table ‘0’ means 0(zero), but ‘0’ means
48.
‘0’  NULL – Byte with all bits as logic zero

3. D
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As we know that Array is a collection of similar data type
elements. ( int / char / float . . . )
String is a collection of similar type elements called
characters, So String can be declared as array of characters
called character array.
Syntax: <data type> <variable_name>[size];
Example:
char name[10];
Index values: 0 1 2 3 4 5 6 7 8 9
char city[20];
Here size = Number of characters + 1
Compiler automatically supplies Null (‘0’) character to
represent end of the string.
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

4. I
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Z
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Assigning values to a variable is called initialization
String can be initialized as
char name[6];
name[0] = ‘D’; name[1] = ‘E’; name[2] = ‘N’;
name[3] = ‘N’; name[4] = ‘I’; name[5] = ‘S’;
String can also be initialized at the time of declaration
char name[20]=“DENNIS RITCHIE”;
Or
char name[20]={‘D’,’E’,’N’,’N’,’I’,’S’,‘ ’,’R’,’I’,’T’,’C’,’H’,’I’,’E’}
String can also be initialized without specifying size
char name[ ] = “HAI THIS IS MANOHAR”;
D E N N I S R I T C H I E 0 0 0 0 0 0
H A I T H I S I S M A N O H A R 0
D E N N I S

5. T
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K
U