Bytes Occupied By Data Types In Java Code Example

Snippet 1

  Data Type Size Stores
byte  1 byte whole numbers from -128 to 127
short  2 bytes whole numbers from -32,768 to 32,767
int   4 bytes whole numbers from -2,147,483,648 to 2,147,483,647
long  8 bytes whole numbers from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
float  4 bytes fractional numbers; sufficient for storing 6 to 7 decimal digits
double  8 bytes fractional numbers; sufficient for storing 15 decimal digits
boolean  1 bit true or false values
char  2 bytes single character/letter or ASCII values 

Snippet 2

  Class Node {

Node next = null;
int data;

public Node(int d){ data = d; }

void append(int d)
    {
        blah blah blah
        ..............
    }
}