android - generate random numbers with no repeat [duplicate]

Answer 1

My two cents

public Collection getRandomSubset(int max,int count){
    if(count > max){
        throw new IllegalArgumentException();
    }
    ArrayList list = new ArrayList();
    for(int i =  0 ; i < count ;i++){
        list.add(i);
    }       
    Collections.shuffle(list);
    return list.subList(0, count);
}