Boolean Types
Variables of type boolean can have any of the two Boolean literal values true and false. The expressions that result in a Boolean type are used in the context of decision making. Several operators combine boolean values, including operators for boolean AND, boolean OR, and boolean negation (these are &&, ||, and !, respectively), as well as comparison operators that produce a boolean result.
boolean state = true; //Initialize the variable state with the value true.
state=false;
Note: Java does not support bool to integer conversions. Boolean types cannot be cast to primitive types and vice versa
Side Note: The boolean type is named after the mathematician, George Boole, who invented Boolean algebra.
Literals
Explicit data values that appear in the program are called literals. Literals are used to represent fixed values or constants. Each literal is also of a particular type and can be used anywhere a value of its type is allowed. Integer Literals have int type, floating point literals have double type etc. If the type of the literal is not specified, java assigns the most feasible type to it by default. If the type has to be explicitly assigned add appropriate suffixes to the literal. 25, for example, is an integer literal of type int.
Boolean Types
Variables of type boolean can have any of the two Boolean literal values true and false. The expressions that result in a Boolean type are used in the context of decision making. Several operators combine boolean values, including operators for boolean AND, boolean OR, and boolean negation (these are &&, ||, and !, respectively), as well as comparison operators that produce a boolean result.
boolean state = true; //Initialize the variable state with the value true.
state=false;
Note: Java does not support bool to integer conversions. Boolean types cannot be cast to primitive types and vice versa
Side Note: The boolean type is named after the mathematician, George Boole, who invented Boolean algebra.
Literals
Explicit data values that appear in the program are called literals. Literals are used to represent fixed values or constants. Each literal is also of a particular type and can be used anywhere a value of its type is allowed. Integer Literals have int type, floating point literals have double type etc. If the type of the literal is not specified, java assigns the most feasible type to it by default. If the type has to be explicitly assigned add appropriate suffixes to the literal. 25, for example, is an integer literal of type int.