c program to concatenate two strings | 2D strings examples in c | program without strcat()

Array and string programs in C

 // program to concatenate two strings without using strcat()

#include<stdio.h>

int main()

{

char string1[100],string2[100];

int i=0,j=0;

printf("enter first string");

gets(string1);

printf("enter second string");

gets(string2);

while(string1[i]!='\0')

{

i++;

}

while(string2[j]!='\0')

{

string1[i]=string2[j];

i++;

j++;

}

string1[i]='\0';

printf("the concatenated string=%s",string1);

return 0;

}

output:-

c program to concatenate two strings without strcat()