Dienstag, 4. Juli 2017

Arraylist int

ArrayList(int index, Object) funktioniert nicht korrekt? ArrayList mit int-Werten sortieren11. I'm new to the concept of arraylist.

I had make a few line program code. Generics in Java is not applicable to primitive types as in int. I have seen the question: Create ArrayList from array.


I want to declare an ArrayList of type integer. ArrayList can only reference types, not primitives. In Java generic type arguments must be objects.


It seems I can do List myList = new ArrayList(); and add int into this list. When you add int to this list, it is automatically boxed to Integer wrapper . So you can use them as elements in a list, . This Java tutorial uses an ArrayList of Integer values to store int values. These C# examples show the ArrayList type from System.

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