Is it necessary to remember the range of int and other data type in java? It seems very hard to do that.

Answer 1

There's no need to remember that unless you are going to deal with big numbers like that in your code.

Answer 2

No, even when dealing with large numbers you can just use: dataType.MAX_VALUE.

Integer.MAX_VALUE = 2.1..b

Answer 3

Just remenber int composed of 4bytes.

Answer 4

thank you