Question

I have a question regarding the following code

Random randomGenerator = new Random();
    int randomInt = randomGenerator.nextInt(4);
    String wordList[] = new String[4];
    {
        wordList[0] = "Red";
        wordList[1] = "Blue";
        wordList[2] = "Green";
        wordList[3] = "Orange";


    }

String wordToDisplay = wordList[randomInt];

This code works fine however I would like to know if it was possible to get it to not pick the same word two times in a row. For example, if it just selected “Red” then it would not pick “Red” again the next consecutive time. I read something about DISTINCT but I’m not sure if that’s along the right path.

Here is the code for the button which uses this

final Button button1 = (Button) findViewById(R.id.button1);
        final TextView textView = (TextView) findViewById(R.id.text_random_text);
        button1.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                // Perform action on click
                Random randomGenerator = new Random();
                int randomInt = randomGenerator.nextInt(9);
                String wordToDisplay = wordList[randomInt];
                textView.setText(wordToDisplay);

Thankyou for your help

Answer 1

go for list and remove color once used:

private static ArrayList<String> arrayList = new ArrayList<String>();
private static Random random = new Random();
public static void fillList(){
    arrayList.add("Red");
    arrayList.add("Blue");
    arrayList.add("Green");
    arrayList.add("Orange");
}
public static String getNextRandomColor(){
    if(arrayList.isEmpty()){
        fillList();
    }
    return arrayList.remove(random.nextInt(arrayList.size()));
}