These are operators that return a Boolean value (either true or false)
RELATIONAL OPERATORS
It is used in selecting one of many code blocks to be executed.
Switch statement
A unary logical operator and simply negates its value
Not Operator
A binary logical operator that returns true if at least one of the operands is true, otherwise it will return false.
OR Operator
A binary logical operator that returns true if all of the operands is true, otherwise it will return false.
AND Operator
It gives us the character at index 0
charAt(0)