Boolean Keyword in Java

boolean Java Keyword boolean is a Java primitive type. A boolean variable may take on one of the values true or false.
Examples

boolean valid = true;
if (valid)
{

}

Remarks of Boolean Keyword in Java

A boolean variable may only take on the values true or false.

A boolean may not be converted to or from any numeric type.

Expressions containing boolean operands can contain only boolean operands.

The Boolean class is a wrapper class for the boolean primitive type.