This may actually be a silly question but I am wondering if it is possible to have an if statement executing all conditions. I explain:
if (methodA() && methodB() && methodC()) {code}
code
is executed when all three methods return true. The point is that when a method returns false, the rest of the methods aren't executed. This is normally a good thing for performance but what if I really need to execute all methods independently of what they are returning and after that evaluate the expression and go into the if or not. The same is applied for OR or whatever
Is there a way to tell java to behave that way? My current work around is to split it in three ifs but this not always does the trick and looks really ugly.
That’s quite simple: use the &
operator instead of &&
.
From: http://docs.oracle.com/javase/specs/jls/se7/html/jls-15.html#jls-15.23
The conditional-and operator && is like & (§15.22.2), but evaluates its right-hand operand only if the value of its left-hand operand is true.
Use the bitwise &
operator, which evaluates both sides of the condition and stops the conditional from short circuiting. As you have noticed the &&
and ||
conditional operators will short circuit once the result of the expression can be determined.
if (methodA() & methodB() & methodC()) {code}
Documentation
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