The document discusses data types and variable naming in Turbo-C. It describes the different data types like int, float, char, and long int. It explains the rules for naming variables, such as starting with a letter or underscore and not using keywords. It provides examples of declaring and assigning values to variables of different data types and using them in print statements.

1. ARVIN santos buendia

2. OBJECTIVES Discuss the different data types that can be used in Turbo-C Explain and evaluate the rules in naming variables Create the syntax of data types and variable names in Turbo-C Codes

3. VARIABLE DECLARATION OF TURBO-C SYNTAX <data type> <variable name> char g ; int x , y , z ; float f=5.67 ; int x=10 ; char name[10] ;

4. < DATA TYPES > int a whole number consisting of an optional sign (+ or -) followed by a sequence of digit can hold integer quantities that do not require a fractional component or decimal places occupies two bytes in the address ranges from –32768 to +32767

5. < DATA TYPES > Types of int long int takes up more space and can store large number ranges from –2147483648 to +2147483647 occupies 4 bytes unsigned int cannot be negative from 0 to 65536

6. < DATA TYPES > float consists of an optional sign (+ or -), followed by one or more digits , a decimal point, and one or more further digits it can include an optional exponent ranging from 3.4 E –38 to 3.4 E +38

7. < DATA TYPES > double is a special float which can store more significant digits and have longer exponent ranges from 1.7E-308 to 1.7E+308 with 15 digits accuracy

8. < DATA TYPES > char can be used to contain a single letter, digit, punctuation mark or control symbol recognized by the computer written enclosed within single quotation marks, but literals strings are enclosed in double quotation marks

9. < DATA TYPES > char a character may be assigned an integer value between –128 and +127 unsigned char data type may be assigned an integer value from 0 to 255 char c; char b = ‘*’; char a[30]; char a = “apple”;

10. < VARIABLE NAME > arvin#030709 buendia_arvin : ] superman superman arvin25 [email_address]

11. < VARIABLE NAME > It must start with a letter or an underscore, with subsequent characters being letters, numbers, or the underscore _arvin superman 05buendia buendia05 %arvin *superman

12. < VARIABLE NAME > A Turbo C Variable may consist of 63 characters, but only the first 32 are significant do_you_know_that_this_is_one_long_variable_name_but_still_valid do_you_know_that_this_is_one_long_variable_name_but_still_considered_as_invalid tamahome miyaka_mikaela rain_mikayla

13. < VARIABLE NAME > A variable is case sensitive, that is, uppercase variables are treated differently Variable “ SUM ” is different from variable “ sum ” Variable “ NetPay ” is different from variable “ NETpay ”

14. < VARIABLE NAME > A variable cannot be the same as a Turbo C keyword. float elwin main ping dota printf

15. < VARIABLE NAME > A variable cannot be the same as a Turbo C keyword. float elwin main ping dota printf

16. < VARIABLE NAME > Variable names must be unique and descriptive area sheverlou cute surname product churva

17. < DECLARING VARIABLES > #include<stdio.h> main( ) { int peso; printf(“Variable Value : %i ”, peso ); } _ Variable Value : _ 0 _ 0 0

18. < DECLARING VARIABLES > #include<stdio.h> main( ) { char let; printf(“Variable Value : %c ”, let ); } _ Variable Value : _ ả _ ả ả

19. < DECLARING VARIABLES > #include<stdio.h> main( ) { int x,y; printf(“Variable Values : %i %d ”, x , y ); } _ Variable Value : _ 0 _ 0 VARIABLE 1 VARIABLE 2 0 0 0 0 _

20. < DECLARING VARIABLES > #include<stdio.h> main( ) { float gross=5.84365; int age=3; printf(“Variable Values : %i %.3f ”, age , gross ); } _ Variable Value : _ 3 _ 5.84365 VARIABLE 1 VARIABLE 2 3 3 5.84365 5.844 _

21. < DECLARING VARIABLES > #include<stdio.h> main( ) { int a=5, b=6, c=7, para; para = a + b + c; printf(“PARAMETER : %i ”, para ); } _ PARAMETER _ 18 _ 5 6 7 0 5 6 7 18 18