boolean variables

[ravian]

I am confused about boolean variables. What is the use of boolean variables? We can use short variable (as a flag) for the required purpose then what edge does boolean variables gives us?

Code:

			if(var == 1)
				System.out.println("true");
			else
				System.out.println("false");

[staykovmarin]

Code:

var == 1

Right now you are using a boolean operator (the double = sign). The result of the following equation is true of false. '
The use is this (in pseudocode):

Code:

boolean isAuthenticated = false;

if (passWordIsCorrect) isAuthenticated = true;
else isAuthenticated = false;

if (isAuthenticated) allowToSeeSecretData;

note: Pseudo code is English, written in a more code like form, just to make sense. That of course will not compile.

[ravian]

So its slower in that case. If I use boolean variable, it will be faster... Is this what you mean?

[CaptainMorgan]

Quote:

Originally Posted by ravian

So its slower in that case. If I use boolean variable, it will be faster... Is this what you mean?

It's more of a convenience to further abstraction, fundamental to OOP.