set
 |
fatedgar
2011-12-27
下面俩断代码输出什么，为什么出现这样不通的结果？
一： public static void main(String[] args)
{
TreeSet<Integer> s = new TreeSet<Integer>();
TreeSet<Integer> subs = new TreeSet<Integer>();
for(int i=606; i<613; i++)
if(i%2 == 0) s.add(i);
subs = (TreeSet)s.subSet(608, true, 611, true);
s.add(629);
System.out.println(s + " " + subs);
}
二： public static void main(String[] args)
{
TreeSet<Integer> s = new TreeSet<Integer>();
TreeSet<Integer> subs = new TreeSet<Integer>();
for(int i=606; i<613; i++)
if(i%2 == 0) s.add(i);
subs = (TreeSet)s.subSet(608, true, 611, true);
subs.add(629);
System.out.println(s + " " + subs);
}
|
 |
wendy_wxie
2012-01-09
第二个报错。。
subSet方法介绍： The returned set will throw an IllegalArgumentException on an attempt to insert an element outside its range |
