How to declare an ArrayList that can hold int variables

[ankiit]

Hi All,

Please share the way of How to declare an ArrayList that can hold int variables?

[JosAH]

ArrayList<Integer>

kind regards,

Jos

[ankiit]

Hi Jos,

Thanks.

But I want to use something like:-

int rand = (int) (Math.random()* 5);
ArrayList<Integer> loc = {rand, rand+1, rand+2};

[sehudson]

An ArrayList is different from an Array.
You need to initialize your ArrayList first, then add your elements to the ArrayList.

 ArrayList<Integer> loc = new ArrayList<Integer>();
loc.add(rand);
loc.add(rand+1);
loc.add(rand+2);

[ankiit]

thanks i got your point.

[Garik]

Hi Jos,

Thanks.

But I want to use something like:-

int rand = (int) (Math.random()* 5);
ArrayList<Integer> loc = {rand, rand+1, rand+2};

Head first java i guess!