Example Program:  To print the following pattern:-** ** * ** * * *  #include<stdio.h> main() { int i,j; for(i=1;i<=4;i++) { for(j=1;j<=i;j++) { printf("*\t"); } printf("\n"); } }  Output:  

Example Program 1:  To find the sum of the digits of the given number using for loop.  #include<stdio.h> main() { int m,i=1,k=0,y,p; printf("\nEnter any value :

Program to read numbers from a file “data” which contains a series of integer numbers and then write all odd

Program to change all upper-case letters in a file to lower case letters and vice versa.  #include<stdio.h> main() { FILE *fp1,*fp2; char c; fp1=fopen("text.txt","r"); fp2=fopen("copy.txt","w"); while((c=getc(fp1))!=EOF) { if(c>=65&&c<=91) c=c+32; else c=c-32; putc(c,fp2); } fcloseall(); }   Output:  

Program to add content to a file and display the content before and after adding to a file.  #include<stdio.h> #include<conio.h> main() { FILE *fp1,*fp2; char s,c; clrscr(); printf("\n\n\t

#include<stdio.h> main() { FILE *fp1,*fp2; char s; fp1=fopen(“input.txt”,”r”); fp2=fopen(“output.txt”,”w”); while ((s=getc(fp1))!=EOF) putc(s,fp2); fclose(fp1); fclose(fp2); }   Output:  

Program to read a C program and count the number of statement terminators and the number of opening braces.  #include<stdio.h> main() { FILE *fp; int

Program to read data from input file and place first 10 characters in an array and display on the monitor.  #include<stdio.h> main() { FILE

program to read a character file and encrypts it by replacing each alphabet by its next alphabet cyclically i.e., z

#include <stdio.h> #include <string.h> union Data { int i; float f; char str[20]; }; int main( ) { union Data data; data.i = 10; printf( "data.i : %d\n", data.i);data.f =