Data types in Java

Data types specifies the types of value and its size that can be stored in an identifier. There are 2 types of data types as given below.

  1. Primitive data types
  2. Non-Primitive/Reference data types

Datatypes

Datatype Description Example Default value
byte Can be used for saving memory in large arrays.It is four
times smaller than an int.
byte a =100 0
short Can be used for saving memory in large arrays.It is two
times smaller than an int.
short x=1000 0
int int is generally use as default data type,unless there is memory concern int x=1000 0
long It is used when larger value than int is needed. int x=100000L 0L
float use it if needs to save memory in large arrays of floating point numbers. int x=176.8f 0.0f
double It is generally used as default value for decimal values. int d=176.8 0.0d
boolean Its 2 possible value are – true and false. boolean name=true false
char Char data type is used to store any character. char c =”A” ‘\u0000’
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Variable Types in java
Operators in java
Shekhar Sharma

Shekhar Sharma

Shekhar Sharma is founder of testingpool.com. He is an automation engineer having more than 8 years of experience who loves troubleshooting in automation and finding innovative ways to solve the problems. His other leisurely activities includes playing harmonica, paintings, sketching portrait, watching movies and travelling etc.

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  1. August 18, 2015

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