C Programming - Strings - Discussion
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- Albert Einstein
1.
What will be the output of the program ?
#include<stdio.h>
#include<string.h>
int main()
{
char str1[20] = "Hello", str2[20] = " World";
printf("%s\n", strcpy(str2, strcat(str1, str2)));
return 0;
}
[A]. Hello [B]. World [C]. Hello World [D]. WorldHello
Answer: C
Explanation:
Step 1 : char str1[20] = "Hello", str2[20] = " World"; The variable str1 and str2 is declared as an array of characters and initialized with value "Hello" and " World" respectively.
Step 2 : printf("%s\n", strcpy(str2, strcat(str1, str2)));
=> strcat(str1, str2)) it append the string str2 to str1 . The result will be stored in str1 . Therefore str1 contains "Hello World".
=> strcpy(str2, "Hello World") it copies the "Hello World" to the variable str2 .
Hence it prints "Hello World".
