[thecode222]

It gives me a question like this...

boolean eBoola = true;
System.out.println(!eBoola);

I don't really understand it so if you can dumd it down a little.
And thank you.

[KYA]

What exactly is the question?

It creates a boolean set to true and prints out NOT boolean which is !true = false.

[thecode222]

What is output by the code to the right?

[KYA]

Did you not read what I wrote?

[thecode222]

right i did you said what is the question

[KYA]

KYA said:

It creates a boolean set to true and prints out NOT boolean which is !true = false.

[thecode222]

O forgive me. I am sorry. I didn't read it right.
So it is false for (!)?

[modi123_1]

The "!" gets the inverse (or opposite) of the boolean value after it.

If the boolean value was true, putting a ! in front makes it false.
If the boolean value was false, putting a ! in front makes it true.

It's like saying 'not this boolean value'..

[pablo9891]

Perhaps you don't knwo wxactly what a boolean is. A boolean is a variable which could possibly has two kind of values: True or False, most of the times you use it for the conditions statements. There are differents conectors for the booleans, like AND, OR, NOT, which compares the values from the vaiables and decide what t do.

[Tom9729]

What exactly was preventing you from just putting that in a Java program and running it to determine the result?

[Aphex19]

Here's an example in C. Lets say you create a boolean variable (true or false).

bool isThisTrue = false;

This code would change the state of the boolean variable (ie from false to true and visa versa).

isThisTrue = !isThisTrue;

In other words it is saying

isThisTrue = not current value of isThisTrue

Sorry if thats a bit random but I thought it might be a good example.

This post has been edited by Aphex19: 24 December 2009 - 07:27 PM