It is basic unit of storage and variables have scope, visibility and lifetime.
Or
Int x=1, y=2, z=5;
Declaration of variables:
Int x, y, z;Or
Int x=1, y=2, z=5;
Type conversion and casting:
If there is any compatibility existing between two types then java would automatically performs the conversion.Java automatic conversion:
- It will be performed when two conditions are met.
- When the two types are compatible;
- Destination type is larger than the source type.
- After the two conditions are been satisfied a widening conversion takes place.
Casting compatible types:
- It is a simple and explicit type of conversion.
- When a floating type of conversion is attached to an integer type this type of conversion is called truncation.
- It is a kind of conversion sometime called narrowing conversion
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