Programming involves giving commands (input) to a processing unit which analyzes, converts to binary, and processes the commands. The processing unit then converts the results back and provides output. Compilers are specifically required for programming in languages like C/C++ and Java. General C coding knowledge includes including standard libraries, defining a main function that returns 0, and using functions like printf. C supports various data types that require different byte sizes of memory like integers (4 bytes), floats (4 bytes), and characters (1 byte). C also includes control structures like for, while, and do-while loops as well as functions and pointers.

1. 1

2. What is programming?
Input:
A command which is
given by the
programmer
e.g.
We are EEE family
(We want to print out
what we’ve written)
Processing Unit:
 Analysing the command
 Converting input command in
binary data
 Process the binary command
 Converting to aspect result
e.g.
i. We are EEE family = 0101…..
ii. Process 0101……
iii. 0101= We are EEE family
Output:
Result of the process
e.g.
We are EEE family
(Computer’ve printed
out what we had
wanted to write)
2

3. What is compiler?
Compilers we specially require:
• Code-blocks (for c or c++ programming)
• Net-Beans (for Java or Android programming)
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4. 4
C Symbolic patterns

5. General knowledge of C coding:
CODING:
5
#include <stdio.h>
//include standard input & output numbers
#include <stdlib.h>
//include standard library numbers
int main()
// main function , integer type ,not including any arguments
{
printf(" ");
// means new line
return 0;
//main function doesn’t return any value
}

6. 6
#include <stdio.h>
#include <stdlib.h>
int main()
{
printf(" ");
return 0;
}

7. Data types:
7
Bytes Required:
#include <stdio.h>
#include <stdlib.h>
int main()
{
int a;
float b;
char c;
int s1,s2,s3;
s1=sizeof(a);
s2=sizeof(b);
s3=sizeof(c);
printf ("%d %d %d ",s1,s2,s3);
return 0;
}
 An integer requires 4 bytes
of Memory
 A float requires 4 bytes of
Memory
 A character requires 1 byte
of Memory
 A string requires (x + Null)
bytes . Here x is its total
bytes of characters

8. Some important Functions & Features:
8
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i;
for (i=0;i<10;i++)
{
printf("%dn",i);
}
for (i=9;i>=0;i--)
{
printf("%dn",i);
}
return 0;
}

9. 9
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i=0;
while(i<10)
{
printf("%dn",i);
i++;
}
int y=1;
while(y==1)
{
printf("while function is working n");
printf("Press 1 to continue else any key to close:");
scanf("%d",&y);
}
return 0;
}

10. 10
#include <stdio.h>
#include <stdlib.h>
int main()
{
int i=0;
do
{
printf("%dn",i);
i++;
}
while(i<10);
return 0;
}

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12. Array
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13. User define function:
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14. User define function:
14

15. Pointer variable:
15

16. C programs 16

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int factorial (int a)
{
int i,b=1;
for (i=1;i<=a;i++)
{
b=b*i;
}
return(b);
}

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