Java 基本语法 代码碎片

迭代：

ArrayList  tls = (ArrayList  ) levelManager.getTLevelByOLevelOId(6);
for (TLevel tl : tls) {
	tl.getTId();
	tl.getTName();
}

Set  tl = ol.getTLevels();
List TLevellist = new ArrayList();
TLevellist.addAll(tl);

ArrayList<TLevel> tls = (ArrayList <TLevel> ) levelManager.getTLevelByOLevelOId(6);
 for (TLevel tl : tls) {
     tl.getTId();
     tl.getTName();
 }

将 set 转为 List

 Set <TLevel> tl = ol.getTLevels();
 List TLevellist = new ArrayList();
 TLevellist.addAll(tl);