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C programs QnA

Q. If sum of two integer is 14 and if one of them is 8 then find other integer. Ans: Well, this is very simple. Simply, one integer is 8 and sum of two integers is 14. So, we need to subtract the number 8 from their sum of 14 to get the second number. So, the second number is: 14 - 8 = 6 C-Program of this task Code---> #include<stdio.h> int main () { int num1 = 8 , num2 , sum = 14 ; num2 = sum - num1 ; printf ( "The second number is: %d" , num2 ); return 0 ; }
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String Concatenation using strcat() function in C-Language



In this C program we will concatenate the source string at the end of the target string using strcat()fuction. The String will be given by the User.

strcat() function concatenates the source string which is source_str in this program, at the target string which is target_str in this program. strcat() takes two arguements.
Like : strcat(target_str,source_str);

Learn about different string functions and their use: Different String Functions

input:

The String.

output:

The input string and the concatenated string will be printed on the screen.

CODE---->


#include<stdio.h>
#include<string.h>
int main()
{
 char source_str[100],target_str[100]="Hello ";
 printf("Please, Enter the string: ");
 gets(source_str);
 strcat(target_str,source_str);
 printf("\nSource String is: ");
 puts(source_str);
 printf("\nTarget String is: ");
 puts(target_str);
 return 0;
}

Download the C-Program file of this Program.

Don't just read, run on your pc !!!


RESULT :


Please, Enter the string: World

Source String is: World

Target String is: Hello World

--------------------------------
Process exited after 4.922 seconds with return value 0
Press any key to continue . . .


Images for better understanding :

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