String Handling Programs

Program to find length of the string.
#include <stdio.h>
#include <conio.h>
#include <string.h>
void main ()
{
    char s[20];
    int l;
    clrscr ();
    puts(“Enter String”);
    gets(s);
    l = strlen (s);
    printf (“Length=%d”, l);
    getch ();
}
Output
Enter String
WELCOME
Length=7
Program to copy one string into another string.
#include <stdio.h>
#include <conio.h>
#include <string.h>
void main ()
{
    char s1[20],s2[20];
    clrscr ();
    puts(“Enter String”);
    gets(s1);
    strcpy(s2, s1);
    printf (“S1=%s\n”, s1);
    printf (“S2=%s\n”, s2);
    getch ();
}
Output
Enter String
Hello
S1=Hello
S2=Hello
     
Program to concate two strings.
#include <stdio.h>
#include <conio.h>
#include <string.h>
void main ()
{
    char s1[40],s2[20];
    clrscr ();
    puts(“Enter String1”);
    gets(s1);
    puts(“Enter String2”);
    gets(s2); 
    strcat(s1, s2);
    printf (“S1=%s\n”, s1);
    getch ();
}
Output
Enter String1
Hello
Enter String2
Welcome
S1=HelloWelcome
Program to compare two strings.
#include <stdio.h>
#include <conio.h>
#include <string.h>
void main ()
{
    char s1[20],s2[20]; 
    int ans;
    clrscr ();
    puts(“Enter String1”);
    gets(s1);
    puts(“Enter String2”);
    gets(s2); 
    ans=strcmp(s1, s2);
    if (ans == 0) 
    printf (“String are equal);
    else
    printf("String are Not equal");
    getch ();
}
Output
Enter String1
MAX
Enter String2
MIN
String are not equal
Program to reverse given string.
#include <stdio.h>
#include <conio.h>
#include <string.h>
void main ()
{
    char s1[20];
    clrscr ();
    puts(“Enter String”);
    gets(s1);
    printf (“Original String is %s\n”, s1);
    strrev(s1);
    printf (“Reverse is %s\n”, s1);
    getch ();
}
Output
Enter String
NODE
Original String Is NODE
Reverse is EDON
Program to find one string into another string.
#include <stdio.h>
#include <conio.h>
#include <string.h>
void main ()
{
    char s1[20],s2[20];
    clrscr ();
    puts(“Enter Original String”);
    gets(s1); 
    puts(“Enter Search String”);
    gets(s2); 
    if ( strstr(s1, s2)==NULL) 
    printf (“String Not Found");
    else
    printf (“String Found”);
    getch ();
}
Output
Enter Original String
Hello How Are U
Enter Search String
How
String Found

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