Menu
While I know that by definition a boolean consists of only two states, true or false. I was wondering what value does a boolean have before it is initialized with one of these states.
757
A Boolean expression is a Java expression that returns a Boolean value: true or false .
In Java, the boolean keyword is a primitive data type. It is used to store only two possible values, either true or false. It specifies 1-bit of information and its "size" can't be defined precisely. The boolean keyword is used with variables and methods. Its default value is false.
To display Boolean type, firstly take two variables and declare them as boolean. val1 = true; Now, use if statement to check and display the Boolean true value. if(val1) System.
C does not have boolean data types, and normally uses integers for boolean testing. Zero is used to represent false, and One is used to represent true. For interpretation, Zero is interpreted as false and anything non-zero is interpreted as true.
It defaults to false.
Edit: By popular demand:
unless you're using the wrapped Boolean, which defaults to null. – sudhir.j
157
If it is a local variable, it is a compiler error to reference it before it was initialized. If it is a field, it is initialized to false.
24
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
