How to Concatenate Two Strings

Here you will know that How to Concatenate Two Strings in CPP with and without using strcat function.

strcat() function is a built-in C++ library function that concatenates (joins) two strings together.

Program Code to Concatenate Two Strings without strcat()

#include<iostream>

#include<stdio.h>

using namespace std;

int main()

{

char string1[50], string2[50], string3[100];

int i, j=0;

cout<<"Enter the First String: ";

gets(string1);

cout<<"Enter the Second String: ";

gets(string2);

for(i=0; string1[i]!='\0'; i++)

{

string3[i]=string1[i];

j++;

}

for(i=0; string2[i]!='\0'; i++)

{

string3[j]=string2[i];

j++;

}

string3[j] = '\0';

cout<<"\nString after Concatenation: "<<string3;

cout<<endl;

return 0;

}

Output

Enter the First String: Code
Enter the Second String: Revise

String after Concatenation: CodeRevise

Program Code to Concatenate Two Strings with strcat()