Printing one character at a time from a string, using the while loop?

Im reading "Core Python Programming 2nd Edition", They ask me to print a string, one character at a time using a "wh...

while (getchar () != '\n' );?

I have the following for loop, I am prompting the user to enter a 4 digit pin and hit enter. Can someone explain to ...

Reading text-file until EOF using fgets in C?

what is the correct way to read a text file until EOF using fgets in C? Now I have this (simplified): char line[100...

Post Increment in while loop in C?

Here is a very simple C program: int main() { int i = 0; while(i++ < 10) printf("%d\n", i); ...

Python - While false loop?

fn='a' x=1 while fn: print(x) x+=1 if x==100: fn='' Output: 1 ... 99 fn='' x=1 while fn: ...

Creating a Magic Square in java?

I have to write a program that takes in an odd number from the user and creates a magic square. A magic square is on...