Writing Primitive Data Types

Java data types are the kind of data you can store in a variable. Primitive data types are defined by the language itself. Java defines a total of eight primitive types. Of the eight primitive data types, six are for numbers, one is for characters, and one is for true/false values. Of the six number types, four are types of integers, and two are types of floating-point numbers.

Type	Wrapper Class	Parse Method of Wrapper Class
int	Integer	int parseInt(String s)
short	Short	short parseShort(String s)
long	Long	long parseLong(String s)
byte	Byte	byte parseByte(String s)
float	Float	float parseFloat(String s)
double	Double	double parseDouble(String s)
char	Character	(none)
boolean	Boolean	boolean parseBoolean(String s)

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