Boolean

• It is a very thin wrapper around boolean values which is useful when we want to pass a boolean variable by reference.

• It contains the constants TRUE and FALSE, which define true and false Boolean objects.

• Boolean also defines the TYPE field, which is the Class object for boolean.

• It defines the following constructors.

Boolean(boolean boolValue) //in this boolValue must be either true or false

Boolean(String boolString) //in this boolString should be either the string "true" or "false"(in uppercase or lowercase)