do-while

This question already has an answer here: Why is while's condition outside the do while scope 1 answer I was writing something like this code: do { int i = 0; int j = i * 2; cout<<j; i++; } while (j < 100); ( http://codepad.org/n5ym7J5w ) and I was surprised when my compiler told me that I cannot use the variable 'j' because it is not declared outside the do-while loop. I am just curious about if there is any technical reason why this cant be possible. There is a reason why this can't be possible. It is due to the limitation of "statement-scope". Your variables i and j have been declared with

I'm planning to use a do-while loop in MATLAB. Is there a way to do that? Abhishek Thakur while(true) %code if condition==false break; end end Here's another option in MATLAB (more close to a do-while syntax): do = true; while(do || condition) % things to do... do = false; end At least, Octave has do-until . This example creates a variable fib that contains the first ten elements of the Fibonacci sequence. fib = ones (1, 10); i = 2; do i++; fib (i) = fib (i-1) + fib (i-2); until (i == 10) Of course, you must invert your abortion condition compared to do-while . 来源： https://stackoverflow.com

I have a problem with my java application when i compile my codes it says that it cannot find symbol roomLength . what the application supposed to do is prompt the user to input a room name then if it is "quit" then it has to close the program. otherwise it will prompt for the length, width and height of the room. if any of these dimensions is zero or lesser, it will reprompt for the dimensions again. class Room { private String name; private double length; private double width; private double height; public Room(String r, double l, double w, double h) { name = r; length = l; width = w; height