Program to Concate two String in C | Programmerdouts

Practice Program

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Program to Concate a String to other String.

Solution:

void main()
{
 int i,j,k;

char s1[20],s2[20];

printf("Enter the first string: ");
gets(s1);

printf("Enter second string: ");
gets(s2);


printf("first string is  ");
puts(s1);

printf("Second string is  ");
puts(s2);




    for(i=0;s1[i] !='\0';i++)
    {
        //calculating the length of the string
    }
k=0;
    for(j=i ; s2[k] != '\0';j++)
    {
        s1[j] = s2[k];
        k++;
    }
    s1[j] = '\0';

printf("After concatting the second string to first: ");
puts(s1);
}

Output1

Enter the first string: hello

Enter second string: world

first string is hello
Second string is world

After concating the second string to first: helloworld

Output2

Enter the first string: programmer

Enter second string: douts

first string is programmer
Second string is douts

After concatting the second string to first: programmerdouts

Output3

Enter the first string: Good

Enter second string: bye

first string is Good
Second string is bye

After concating the second string to first: Good bye

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defining a function 'concate' which will concate a string

void concate(char s1[],char s2[])
{
    int i,j,k;


    for(i=0;s1[i] !='\0';i++)
    {
        //calculating the length of the string
    }
k=0;
    for(j=i ; s2[k] != '\0';j++)
    {
        s1[j] = s2[k];
        k++;
    }
    s1[j] = '\0';

}

Using above define function 'concate()':

void main()
{

    char s[20] = "Good";
    char s2[20] = "bye";

    concate(s,s2);
    printf("Concated String is");
puts(s1);
}
    puts(s);
}

Output1

Concated String is Goodbye

Using above define function 'concate()':

void main()
{

    char s[20] = "programmer";
    char s2[20] = "douts";

    concate(s,s2);
printf("Concated String is");
    puts(s);
}

Output2

Concated String is programmerdouts

Using above define function 'concate()':

void main()
{

    char s[20] = "hello";
    char s2[20] = "world";

    concate(s,s2);
     printf("Concated String is");
    puts(s);
}

Output3

Concated String is helloworld

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