1. Project Submitted
on
Data types
By
Veena Bhagyawani
106/10 civil lines, Ajmer 305001
Website: www.dezyneecole.com

2. ARRAY
“Array is a group of continues or related
data item that share a common name.”
For Example-
College[10];
Array
Name
Index Number

3. Array
One Dimensional
Array
Two
Dimensional
Array
Multi
Dimensional
Array

4. One Dimensional Array:int number[] = new int[5];
10,20,30,40,50;
For Example.-
Storage Location
Number[0]
Number[1]
Number[2]
Number[3]
Number[4]
Assign Value
Number[0]=10;
Number[1]=20;
Number[2]=30;
Number[3]=40;
Number[4]=50;
Store Value
Number[0]
10
Number[1] 20
Number[2] 30
Number[3]
Number[4]
40
50

5. Creating An Array
1.Declearing The Array.
2.Creating Array.
3.Putting Values Into The
Memory Location.

6. Declaration The Array
Type arrayname[];
int number[5];
Type []arrayname;
int [5] number;

7. Creation Of Array
Arrayname=new type[size];
For Example:Number=new int[5];

8. Initialization Of An Array
Arrayname[subscript]=value;
For example:
Number[0]=35;
Number[1]=20;
Number[2]=30;

9. Two Dimensional Array
int myArray[][];
myarray =new int[3][2]
Item1
Item2
Item3
100
200
300
400
500
600
Column0
column1
column2
[0][0]
[0][1]
[0][2]
100
200
[1][0]
[1][1]
SP1
SP2
Rows0
Rows1
400
500
300
[1][1]
600

10. “DATA TYPE”
Data type specific the size in
type of value that can be store.

11. Data Type
in Java
Primitive
Non-Primitive
Array
Numeric
Non-Numeric
Character
Integer
Floating
Point
Interface
Classes
Boolean

12. Integer Type
Integer
Byte
{-128 to 127}
Long
Short
{-32,768
to 32,767}
Int
{2,147,483,648
to
2,147,483,647
}
{9,223,372,036,
854,775,808 to
9,223,372,036,
854,775,807}

13. Floating Point Type
Floating point
Float
{3.4e-038
to
1.7e+0.38}
Double
{3.4e-038
to
1.7e+308}

14. Character Type
Java provide a character data type
called char.
Boolean Type
TRUE
FALSE

15. Thank You
Presented By
Veena Bhagyawani
B.C.A 2nd Year