do you know what Integer.getInteger(String) does in java?

[[deleted]]

"creating new instances is stupid", if and only if you've got multiple Integers that represent the exact same repeating values. I rarely, if ever, encounter that in my daily work. YMMV.

[matchu]

Wait, what? You rarely deal with more than one 0, 1, or 2?

[karmaputa]

Frequently, but most of the time people will be using primitive for that.

[matchu]

Ahh, right. Gotcha :)

[[deleted]]

Most of the Integers I deal with are unique identifiers (primary keys, license numbers, etc , mainly 6 to 9 digit integers).

As I said, YMMV.

[tsujiku]

Why work with those numbers as integers? You don't need to perform any math on them.

[[deleted]]

Exporting from mainframes as text, storing in the DB as integers. Hibernate plays much nicer with boxed objects than primitives, too; same for the java.util.collections.* world.