random List item - Android java.util

Android examples for java.util:Random

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Description

random List item

Demo Code

import android.annotation.SuppressLint;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Random;

public class Main{

    public static List<String> randomList(List<String> options) {
        int min = 1;
        int max = options.size();

        List<String> list = new ArrayList<String>(options);

        String temp2 = list.get(max - 1);
        list.remove(max - 1);// www  .j  a v a  2 s. c o m
        list.add(1, temp2);

        Random r = new Random();
        for (int i = 0; i < max; i++) {
            int rand = r.nextInt(max - min) + min;
            String temp = list.get(0);
            list.add(rand, temp);
            list.remove(0);
        }

        return list;
    }

}

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