Which of the data types hold the maximum memory in Java?

Which datatype uses maximum memory?

The data type “double” store decimal numbers with double precision and occupies 8 to 12 byte of memory. The data type Long double occupies 12 bytes of memory in the system.

What data types in Java has the highest byte value?


  • byte 1 byte -128 to 127.
  • short 2 bytes -32,768 to 32,767.
  • int 4 bytes -2,147,483,648 to 2,147,483,647.
  • long 8 bytes -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807.

What is the limit of data type in Java?

Primitive Data Types

Data Type Size Description
byte 1 byte Stores whole numbers from -128 to 127
short 2 bytes Stores whole numbers from -32,768 to 32,767
int 4 bytes Stores whole numbers from -2,147,483,648 to 2,147,483,647
long 8 bytes Stores whole numbers from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807

What is the memory requirement of Java primitive data types?

2.1. Primitive Data Types

Data Type Description Memory Size
byte values values from -128 to 127 8 bit signed value
short values values from -32768 to 32767 16 bits signed value
int values values from from -231 to 231-1 32 bits signed value
long values values from from -263 to 263-1 64 bit floating point value
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Which data type requires the least amount of memory Java?

byte datatype has a range from -128 to 127 and it requires very little memory (only 1 byte). It can be used in place of int where we are sure that the range will be very small. The compiler automatically promotes the byte variables to type int, if they are used in an expression and the value exceeds their range.

What are the five data types?

Data types

  • String (or str or text). Used for a combination of any characters that appear on a keyboard, such as letters, numbers and symbols.
  • Character (or char). Used for single letters.
  • Integer (or int). Used for whole numbers.
  • Float (or Real). …
  • Boolean (or bool).

Which data type is 7?

data type

Data Type Used for Example
Integer Whole numbers 7, 12, 999
Float (floating point) Number with a decimal point 3.15, 9.06, 00.13
Character Encoding text numerically 97 (in ASCII, 97 is a lower case ‘a’)
Boolean Representing logical values TRUE, FALSE

What type is 0 in Java?

1- Overview of data types

Data type Default Value Size
byte 1 byte
short 2 byte
int 4 byte
long 0L 8 byte

What is range of data types in Java?


Type Size Range
byte 8 bits -128 .. 127
short 16 bits -32,768 .. 32,767
int 32 bits -2,147,483,648 .. 2,147,483,647
long 64 bits -9,223,372,036,854,775,808 .. 9,223,372,036,854,775,807

What is a long data type in Java?

long: The long data type is a 64-bit two’s complement integer. … In Java SE 8 and later, you can use the long data type to represent an unsigned 64-bit long, which has a minimum value of 0 and a maximum value of 264-1. Use this data type when you need a range of values wider than those provided by int .

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