Question

Assume we have two string variables:  

Shakespeare byte 'Brevity is the soul of wit' and 

Poet byte 'The problem is not in the stars but within ourselves'  

Write a AL program that will interchange the contents of the two variables.

Answer 1

1. group of character is nothing but String .we can create string object . once we create string object and we cant change string value.But we can intercahnge the string values.

for example.

#include 
#include 
#include 
 
int main()
{
   char first[100], second[100], *temp;
 
   printf("Enter the first string\n");
   gets(first);
 
   printf("Enter the second string\n");
   gets(second);
 
   printf("\nBefore Swapping\n");
   printf("First string: %s\n",first);
   printf("Second string: %s\n\n",second);
 
   temp = (char*)malloc(100);
 
   strcpy(temp,first);
   strcpy(first,second);
   strcpy(second,temp);
 
   printf("After Swapping\n");
   printf("First string: %s\n",first);
   printf("Second string: %s\n",second);
 
   return 0;
}