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This is not going to be covering the more advanced stuff, like creating
your own generic classes etc, it will just focus on problems encountered
by people beginning with programming. The language used here is Java,
however the subject is common to most modern languages. Also this
tutorial covers some aspects of static and dynamic typing, and one of
the OOP(object oriented programming) pillars: polymorphism.
A little history
Everybody who programs in any way knows we need to store data. To store it in memory you use variables, or when you need a lot, you use an array. However, as you probably know, arrays are the old school way of doing things, in the object oriented world we use classes like ArrayList, Stack, HashMap etc etc. Those provide a lot more functionality, at the cost of a bit more overhead. more...
A little history
Everybody who programs in any way knows we need to store data. To store it in memory you use variables, or when you need a lot, you use an array. However, as you probably know, arrays are the old school way of doing things, in the object oriented world we use classes like ArrayList, Stack, HashMap etc etc. Those provide a lot more functionality, at the cost of a bit more overhead. more...
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