取100以内10个不同的随机整数问题
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

public class RandomData{
public static void main(String[] args)
{
Set<Integer> datas = getRandomData();
Iterator<Integer> iter = datas.iterator();
while(iter.hasNext()){
System.out.println(iter.next());
}
}

private static Set<Integer> getRandomData(){
Integer data = null;
Set<Integer> datas = new HashSet<Integer>();
while(datas.size() < 10){
data = new Integer((int) (Math.random()*100));
datas.add(data);
}
return datas;
}
}