Lec c9 - Todays Agenda CharacterArrays Declaration...

1
Computer Programming I TA C162 .
Today’s Agenda
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Character Arrays

One dimensional Arrays

Strings
–
Declaration
–
Initialization
–
Printing
–
Reading

Examples
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Character Manipulation in strings
–
String Manipulation

2
Computer Programming I TA C162 .
Strings
•
Strings in C are represented by arrays of characters
•
End of the string is marked with a special character NULL.
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The corresponding escape sequence character is ‘\0’.
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C does not have string data type.
Declaration of strings:
char str[30];
char line[80];

3
Computer Programming I TA C162 .
String Initialization:
char str[9] = “I like C”;
same as
char str[9]={‘I’,‘ ’,’l’,‘i’,’k’,’e’,‘ ‘,’C’,’\0’};
Q. Is there any difference between following Initialization?
char str[]=“BITS”;
char str1[4]= “BITS”;
Ans : Yes, in second declaration there is no
null character . Also, sizeof(str) = 5
sizeof(str) = 4;

4
Computer Programming I TA C162 .