java2db

What are the primitive data types in java



Variables are required to store the data. Internally, a variable represents the memory location which holds the data. To use a variable in our program, first we should declare which type of data is to be store into that variable .

 

Integer Data Types :

Data Types in java byte  : The byte data type is an 8-bit signed two’s complement integer with minimum value -128 and maximum value 127.
short : The short data type is a 16-bit signed two’s complement integer with minimum value of -32,768 and a maximum value of 32,767.
int     : The int data type is a 32-bit signed two’s complement integer with minimum value of   -2,147, 483,648  and a maximum value of 2,147,483,647.
long  : The long data type is a 64-bit signed two’s complement integer with minimum value of -9,223, 372 , 036, 854, 775, 808 and a maximum value of 9,223,372,036,854,775,807.

 

Data Types in java Float Data Types:

Data Types in java float    :  The float data type is a single-precision 32-bit IEEE 754 floating point with -3.x to -1.4e-45 for .-ve values and 1.4e-45 to 3.4e38 for +ve values.
double:  The double data type is a double-precision 64-bit IEEE 754 floating point with -1.8e308 to -4.9e-324 for -ve values and 4.9e-324 to 1.8e308 for +ve values.

 

Data Types in java char Data Types:

Data Types in java char  :  The char primitive data type is a single 16-bit Unicode character with minimum value 0 and maximum value 65535.

 

Data Types in java Boolean Data Types:

Data Types in java boolean : The boolean primitive data type has only two possible values: true and false and represents one bit of information.

java supports, the above 8 Data Types .

 

 

Java programming language also provides special support for character strings via the java.lang.String.
The String class is not technically a primitive data type, but considering the special support given to it by  the language.




Related Posts :
Character and boolean primitive data types in java
What are the primitive Integer and Floating-Point Data Types in java
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