Java- Data types / Chapter - 3 /Language Fundamental

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Data Types :-


In Java, every variable and every expression have some type.
Each and every data type is clearly defined. 
Every assignment should check by the compiler for Type compatibility.
Now because of above reasons we can conclude that java is strongly typed language.
Now let's see what are the data type available in java.


1. byte
size = 1 byte(8 bits)
MAX_VALUE =  127
MIN_VALUE =  -128
Range = -128   to   127



2. short
size = 2 byte(16 bits)
MAX_VALUE = 32767
MIN_VALUE =  -32768
Range = -2pow15    to   +2pow15-1



 3. int
size = 4 byte(32bits)
MAX_VALUE = 2147483647
MIN_VALUE =  -2147483648
Range = -2pow31    to   +2pow31-1



4. long
size = 8 byte(64bits)
Range = -2pow63    to   +2pow63-1



5 .float
size= 4 byte(32bits)
Range= -3.4e38 to 3.4e38
                    or
-3.4*10pow38 to +3.4*10pow38



6. double
size= 8 byte(64bits)
Range= -1.7e308  to  1.7e308
                    or
-1.7*10pow308   to  +1.7*10pow308


7.char
 size= 2 byte(16bits)
Range= 0 to 65535



8 . boolean
values= true ,false  
size =not applicable
Range =not applicable
                                              
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