Check all conditions in an "if" statement?

Question

Possible Duplicate:
Why do we usually use || not |, what is the difference?

Example:

if(a && b && d)
{
...
}

I need to find out if a language supports checking all conditions in the if statement even if "b" fails. What is this concept called?

Answer 1

No, neither Java nor C++ will evaluate d. This is short-circuit evaluation.

Answer 2

No, the binary logical operators are short-circuited. They evaluate their operands from left to right. If one of the operands evaluates such that the expression will be false then no other operands are evaluated.

Answer 3

The standatd binary opeartions && and || are short-circuited. If you want to force both sides to evaluate, use & or | instead of && and ||. e.g.

public class StackOverflow {

   static boolean false1() {
      System.out.println("In false1");
      return false;
   }

   static boolean false2() {
      System.out.println("In false2");
      return false;
   }

   public static void main(String[] args) {
      System.out.println("shortcircuit");
      boolean b = false1() && false2();

      System.out.println("full evaluation");
      b = false1() & false2();
   }
}