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Java Int to Long Conversion Methods

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Data Types Overview: Int is a 32-bit signed integer with range -2^31 to 2^31-1
Long is a 64-bit signed integer with range -2^63 to 2^63-1
Main Conversion Methods: Autoboxing uses (long) operator for automatic conversion
Long.valueOf() method returns Long object from int
Long constructor creates new Long object, less efficient
Long.parseLong() converts int to Long using String
Integer's longValue() method works for Integer types
Important Considerations: Conversion from int to Long preserves data
Long consumes 8 bytes memory, int uses 4 bytes
Long values larger than Integer.MAX_VALUE may be lost
ValueOf() preferred for performance and reusability