Question

Hi I’m still new to java data management.

I have a model object class named Computer which has 3 fields: processor, ram, hddSize.

I created a ArrayList

ArrayList<Computer> myCompList = new ArrayList<Computer>();

        Computer comp1 = new Computer();
        comp1.setProcessor("1.5 GHZ");
                    comp1.setRam("512 MB");
                    comp1.setHddSize("100 GB");

        Computer comp2 = new Computer();
        comp2.setProcessor("2.5 GHZ");
                    comp2.setRam("512 MB");
                    comp2.setHddSize("50 GB");

                    myCompList.add(comp1);
                    myCompList.add(comp2);

Now How can I retrieve data at index1 of the ArrayList above?

PS: I know how to do it if its a ArrayList< String> by convert it to String[] and then String[index].

Answer 1

Look at the Javadocs for ArrayList

This is where you should check for simple questions like this. The answer can be found in the “Method Summary” section.