I am not able to understand boolean

Question

Can any body help me

Answer 1

no problem;)

Answer 2

in js for example if the user pressed the button the condition is true and you do some code for that. else: if he didn't the condition is false and you do other things to handle it.

Answer 3

Hi,

A Boolean variable only can take two values: true or false.

It is used to save if the process did make some actions like..
bool isUpdated;

If (getVersion() != getLatestVersion()) {
updateVersion();
isUpdated = true;
}
The standard value of a Boolean variable is false. *IMPORTANT*

In programming values like 0, or something with empty value like "", are taken as nothing, so nothing is the same as false, so if you do that:
int num = 0;

If (num) {
}
else {
}

The compiler will solve the if converting the condition (num) to a Boolean and 0 becomes false, it will execute the else statement.

If you change value of num to any value different to 0 (included negatives) the compiler will take it as a True boolean because it has value.

Hope it helps you

Answer 4

thanks a lot

Answer 5

A boolean variable can ONLY be true or false.

Good for conditional testing

Answer 6

thanks

Answer 7

No problem, hope you get a hang of it 🙂 have a nice day 😀

Answer 8

Ok thanks