Boolean is a wrapper around boolean values.
It defines these constructors:
Boolean(boolean boolValue)
Boolean(String boolString)
boolValue must be either true or false.
If boolString contains the string "true" in uppercase or lowercase, then the new Boolean object will be true. Otherwise, it will be false.
To get a boolean value from a Boolean object, use booleanValue():
boolean booleanValue()
It returns the boolean value of the invoking object.