Can someone help me with this game? (image order)

Processing Coding Questions
4

I suggest you use an array.

You can easily use another array “order” that you (use as as an index for the images and that you) shuffle to have shuffled images.

Now compare the order he clicked with the order of the images in “order” (rough description, this part is a little harder)

import java.util.*; 

PImage[] images= new PImage[4] ; //Declare an array of the type of PImage
ArrayList<Integer> list = new ArrayList();  

int[] order = new int[4] ; 

int counter = 0; 

void setup() {
  size(800, 800);

  images[0] = loadImage("IMG_2637_01.png");
  images[1] = loadImage("IMG_2637_02.png");
  images[2] = loadImage("IMG_2637_03.png");
  images[3] = loadImage("IMG_2637_04.png");

  for (PImage img : images) { 
    img.resize(400, 400); //image
  }

  list.add(0); 
  list.add(1);
  list.add(2);
  list.add(3);   

  Collections.shuffle(list);

  int i2=0; 
  for (Integer i : list) {
    order[i2] = i;
    println(order[i2], order[i2]+1); 
    i2++;
  }

  println("---------------");
}//func 

void draw() {
  background(255);

  image( images[order[0]], 0, 0);
  image( images[order[1]], 400, 0);
  image( images[order[2]], 0, 400);
  image( images[order[3]], 400, 400);
}

// --------------------------------------------------------------------