C programs on C array to display in reverse order and searching

In the next few posts we will work on C array – char type. We will see Different type of  programs on C array.

C program on array to search a specific character from it

Take a string and a special character from the user and display whether the character is available in the string. If available then how many times ?

#include< stdio.h >

#include< string.h >

void main()

{

 char ch[20],c;

 int i=0,counter=0;

 clrscr();

 puts("Enter the string:-");

 gets(ch);

 puts("Enter the character:-");

 scanf("%c",&c);

 for(i=0;i< strlen(ch);i++)

 {

 if(c==ch[i])

 counter++;

 }

 if(counter!=0)

 printf("The character '%c' occurs %d times in the string.",c,counter);

 else

 printf("The character '%c' is not available in the string.",c);

 getch();

 }

C program to display a string in reverse order

#include< stdio.h >

#include< conio.h >

void main()

{

 char str1[100],str2[100];

 int i=0,n=0,j;

 clrscr();

 printf("\nEnter the string::");

 do{

    str1[i]=getchar();

    i++;

    }while(str1[i-1]!='\n');

    str1[i-1]='\0';

 printf("\nThe string is \t%s",str1);

 printf("\nNow the string will be displayed in reversed order\n");

 for(j=i-2;j >=0;j--)

 {

  str2[n]=str1[j];

  n++;

 }

 str2[n]='\0';

 printf("\nReversed string\t%s",str2);

 getch();

}