5 replies to this topic

[SmallTallGiant]

How do i write a for loop that will repeat the number of times the user wants it too when asked by the console? 

[Zaoshi Kaba]

It would be nice to know what language you're using.

 

I'll assume C++:

#include <iostream>

void main() {
    int repeat;
    std::cin >> repeat;
    std::cout << std::endl;

    for(int i = 0; i < repeat; i++)
        std::cout << "repeat\n";
}

[SmallTallGiant]

sorry java thanks that helped figured it out 

Edited by SmallTallGiant, 12 January 2013 - 02:24 AM.

[Crusable]

The code for the for loop will be the same but here:

 

 

 
//imported crap and other code
 
Scanner scan = new Scanner(System.in);
 
int numLoops;
 
System.out.print("How many loops?");
numLoops = scan.nextInt();
 
for(int i = 0; i < numLoops; ++i){
       
//do whatever you need to and loop as many times as the user entered for numLoops
}
 

 

 

you can do the same thing with a while loop (or do while), but the for loop has everything working in one line, where the while loops will take a couple.

 

Hope this helps

Edited by Mathew Bergen, 12 January 2013 - 02:24 AM.

[shadowomf]

where the while loops will take a couple

Remember C/C++ and as far as I know Java too, don't use line endings a seperators.

You can happily write your whole application in one line, as long as the compiler supports it and you don't miss any semicolons.

[Crusable]

where the while loops will take a couple

 

Remember C/C++ and as far as I know Java too, don't use line endings a seperators.

You can happily write your whole application in one line, as long as the compiler supports it and you don't miss any semicolons.

 I understand his, however i said this because the only time i put more than one  "line" of code on one line, is in simple switch statements,

 

 
switch(choice){
 
     case 1: /*goto function*/ break;
 
     ...
}
 

 

and in the code that other people write, i have never seen more that one "line" of code on a  single line. And if you where to write a whole application on one line, it would be very confusing, unless it was a hello world program.