CONCATENATION OF TWO STRINGS in c programming language

52. CONCATENATION OF TWO STRINGS

void main()

{

int i=0,j=0;

char str1[20],str2[20];

clrscr();

puts("Enter first string");

gets(str1);

puts("Enter second string");

gets(str2);

printf("Before concatenation the strings are\n");

puts(str1);

puts(str2);

while(str1[i]!='\0')

{

i++;

}

while(str2[j]!='\0')

{

str1[i++]=str2[j++];

}

str1[i]='\0';

printf("After concatenation the strings are\n");

puts(str1);

getch();

}