String functions using switch in C

• https://monitechvenkat1620.blogspot.com/

• Flowchart :

• Program :

#include<stdio.h>

#include<conio.h>

#include<string.h>

void main()

{

int l, n;

char a[20], b[20], c[20];

clrscr();
printf("\n----------------STRING FUNCTIONS----------------");

printf("\n STRING OPERATIONS\t  \n1.String Concatenation\t  \n2.String Compare\t   \n3.String Copy\t  \n4.String Length\t  \n5.String Uppercase\t  \n6.String Lowercase\t  \n7.String Reverse\t  \n8.String Duplicate\t");

printf("\n Enter your choice:");

scanf("%d", &n);

switch(n)

{

case 1:

printf("\n Enter A :");

scanf("%s",&a);

printf("\n Enter B :");

scanf("%s",&b);

strcat(a, b);

printf("\n String concatenation :%s\t", a);

break;

case 2:

printf("\n Enter A :");

scanf("%s",&a);

printf("\n Enter B :");

scanf("%s",&b);

if(strcmp(a, b)==0)

printf("\n Strings are equal");

else

printf("\n Strings are not equal");

break;

case 3:

printf("\n Enter B :");

scanf("%s",&b);

strcpy(c, b);

printf("\n String copy :%s\t", c);

break;

case 4:

printf("\n Enter A :");

scanf("%s",&a);
l=strlen(a);

printf("\n length of string :%d\t", l);

break;

case 5:

printf("\n Enter A :");

scanf("%s",&a);

printf("\n String uppercase:%s\n",strupr(a));

break;

case 6:

printf("\n Enter A :");
scanf("%s",&a);

printf("\n String lowercase :%s\n",strlwr(a));

break;

case 7:

printf("\n Enter A :");
scanf("%s",&a);

printf("\n String reverse :%s\n",strrev(a));

break;

case 8:

printf("\n Enter A :");
scanf("%s",&a);

printf("\n String duplicate :%s\n",strdup(a));

break;

default:

printf("\n wrong entry");

}

getch();

}

• Output :