Monday 16 March 2015

Q 19) Datatypes And Modifiers In Java ?




Datatypes :

There are 8 datatypes in java  :
               
Datatype
Value ( MIN & MAX )
Size
Default Value
1)
Byte
-128 to127
8 bits
0
2)
Short
-32,768 to 32,767
16 bits
0
3)
Int
- 2,147,483,648 to 2,147,483,647
32 bits
0
4)
Long
- 9,223,372,036,854,775,808  to
9,223,372,036,854,775,807
64 bits
0
5)
Float
Single precision
32 bits
0.0
6)
Double
Double Precision
64 bits
0.0
7)
Char
NA
16 bits
NULL
8)
Boolean
NA
1 bit
FALSE

  
Modifiers :

There are 12 Access Modifiers :

Access Modifiers
Access Modifiers
1)
Public
7)
Static
2)
Private
8)
Synchronized
3)
Default
9)
Native
4)
Protected
10)
Strict fp
5)
Final
11)
Transient
6)
Abstract
12)
Volatile

MODIFIER ACCESS :


Same Class
Same Package
Sub Class
Sub Package
Public
Y
Y
Y
Y
Protected
Y
Y
Y
X
Default
Y
Y
X
X
Private
Y
X
X
X


No comments:

Post a Comment