DATA TYPES IN C

Basic and important Data types in C.

• Integer type :- Integer data type in c are used to store integer values. "int " followed by a name is used to declare a integer type of variable.
• Declaration
• int a=23;
• int a;
• a=78;
• int a,b
• Float type :- Float type is used to store a number with a decimal point. Declared with a keyword "float" followed with a name.
• Example
• float b;
• b=2.34;
• float b=2.34;
• Character type :- Character type is used to store a single alphabet. Declared with a keyword "char" followed by the variable name. The character to be stored in the variable should be inside double or single quotation marks.
• Example
• char a='c',
• char b;
• b="a";
• Long and Double :- long is used when the number is large enough that space for int type is not sufficient. Double is in case of float for large decimal point numbers.
• Example
• long i=1223434545647;
• double num=123545.423534545645;
• Comments in C
• // (two back slash) are used to comment a line in the code.
• /* comments */    are used to comment a bunch of lines at a time.
• "scanf ( )" Function
• scanf function is used to take inputs from users depending on variables data types.
• %d   used for integers
• %f    used for floating point numbers
• %c    for characters

Example code:-

• #include<stdio.h>
• int main()
• {
•        int num1;                                                         //declared a integer variable
•        float num2;                                                     //declared a float variable
•        char  alp;                                                        //declared a character variable
•        printf("enter values");                                    //taking input from user 
•        scanf("%c",&alp);                                            //to take character from user 
•        scanf("%d",&num1);                                         //used to take integer value from user.
•        scanf("%f",&num2);                                         //to take float value from user
•        printf("INTEGER VALUE= %d\n",num1);    //used to display
•        printf("FLOAT VALUE= %f\n",num2);
•        printf("CHARACTER VALUE= %c\n",alp);
•        return 0;
• }

 CODE OUTPUT:-