Java Data Types

It is used to store two types of values, i.e., true or false. This data type is commonly used as a flag in code logic.

• boolean

• byte

• char

• String

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Data Types

It can store 8-bit signed two’s complement integer. The range lies between -128 to 127

• byte

• boolean

• char

• string

This data type is used to store a single 16-bit Unicode character. It stores just one character in simple words, and the word Unicode is used because java uses the Unicode system, not the ASCII system. The size of this data type is 16bits (2 bytes).

• byte

• boolean

• char

• int

It is a data type that stores 32 bit(4 bytes) two’s complement integer, i.e., its range lies within (-2^31 to 2^32 – 1).

• int

• float

• double

• String

Similar to ‘int,’ it is also used to store integer values but within 16-bit (2 bytes) signed two’s complement. Its range lies within (-2^15 to 2^16-1).

• int

• long

• short

• byte

It is 64 bit two’s complement integer and its range lies within (-2^63 to2^64 – 1) i.e. ( -9,223,372,036,854,775,808 to 9,223,372,036,854,775,808).

• int

• short

• long

• byte

It is a data type that holds data with more precision, i.e., floating-point numbers. It is a single-precision 32-bit (4 bytes) IEEE754 floating-point.

• int

• float

• double

• char

It is a double-precision 64-bit (8 bytes) IEEE754 floating point.

• float

• double

• long

• int

It is a sequence of characters.

• char

• string

• boolean

• int

An element of a program that defines the type of data that a variable will hold

• variable

• expression

• operator

• data type