Data types in java (1)

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DATA TYPES IN JAVA
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Types

• They are classified into two types
• Primitive Data Type
• Non-Primitive Data Type

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Primitive Data Type

• They are classified into 8 types,they are
• Byte
• Short
• Int
• Long
• Float
• Double
• Boolean
• Char

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Non-Primitive Data Type

• It can be classified into 2 types,they are
• String
• Array

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Byte

• For Storing whole Numbers
• It stores a value between -128 to 127
• Size 1 byte
• Value 0

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Short

• For Storing Whole Numbers
• It stores value between  -32,768 to 32767
• Size 2 byte
• Value 0

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Int

• For Storing Whole Numbers
• It stores value between -2,147,483,648 to
  2,147,483,647
• Size 4 byte
• Value 0

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Long

• For Storing Whole Numbers
• It stores value between 9,223,372,036,854,775,808
  to 9,223,372,036,854,775,807.
• Size 8 byte
• Value 0

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Double

• It is used for Fractional Numbers
• It stores upto 15 decimal digits
• Size 8 byte
• Value 0

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Float

• It is used for Fractional Numbers
• It stores upto 7 decimal digits
• Size 4 byte
• Value 0

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Boolean

• It is used to tell either true or false

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Char

• It is used in character
• Size   2 bytes

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For Example

• int i 10
• byte b 5
• short s   10
• long   123l
• float 23.9f
• double   34.98d  or 34.98
• boolean true or false
• char A

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Array

• Array is classified into two types
• Single-Dimension Array
• Multi-Dimension Array

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String

• String is a collection of character
• It can be initialized into double quotes
• For example
• String stMy Name

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