final variables

[Anirban dutta]

what is the difference between the following codes:
1)code one:
public static void main(String []args)
{
final int i = 100;
byte b = i;
System.out.println(b);
}
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2)Code two:
public static void main(String []args)
{
int i = 100;
byte b = i;
System.out.println(b);
}
==================================================

[Jessica Sant]

Check out the Java Language Specification for a formal definition:final (�4.5.4)
Basically, a variable declared final is a constant -- its value cannot be changed once assigned.