Go beyond Integer.MAX_VALUE limits in Java

Question

Eliminating heap volume, are there any ways to go beyond Integer.MAX_VALUE limits in Java?

Examples:

• Collections restrict Integer.MAX_VALUE.
• StringBuilder / StringBuffer are limited to Integer.MAX_VALUE.

Answer 1

If you have a huge collection, you will encounter all practical limitations before you ever have 2 ³¹ - 1 in it. A collection with a million items in it will be rather cumbersome, not to mention more than a thousand times more.

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Answer 2

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Answer 3

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Answer 4

Integer.MAX_VALUE, .

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byte = 1 byte => max  2 Gb data
char = 2 byte => max  4 Gb data
int  = 4 byte => max  8 Gb data
long = 8 byte => max 16 Gb data

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Short: Integer.MAX_VALUE is not really a limit, because you need a lot of memory to reach the limit. If you ever reach this limit, you may need to consider improving your algorithm and / or data layout :)

Answer 5

Yes, with the BigInteger class.

Answer 6

A memory update is required .. :)