Amazon Interview Question for SDE1s

Team: Prime
Country: United States
Interview Type: In-Person

Comment hidden because of low score. Click to expand.
of 0 vote

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class SlideShow {

    List<Image> list = new ArrayList();
    List<Image> tempList = new ArrayList();
    List<Image> returnList = new ArrayList();

    public void add(Image img) {
        if (!list.isEmpty()) {
            list.add(list.size(), img);
            tempList.add(tempList.size(), img);
        } else
            list.add(0, img);

    public Image get(int imageId) {
        if (imageId < list.size())
            return list.get(imageId);
            return null;

    public List<Image> generateSlideShow() {
        Random rand = new Random();

        while (!tempList.isEmpty()) {
            int randIndex = rand.nextInt(tempList.size());

            tempList.add(randIndex, tempList.get(tempList.size() - 1));
            tempList.remove(tempList.size() - 1);

        return returnList;



- disaster007 June 30, 2017 | Flag Reply
Comment hidden because of low score. Click to expand.
of 0 vote

Add the List to a HashSet.

It will remove duplicates and will NOT return in insertion order.

- deep.kulshreshtha July 07, 2017 | Flag Reply

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