java - 如何遍历 Collection>

Question

我有这样的东西:

something need here  = scope.getConnections();

//getConnections() returns Collection<Set<IConnection>>

我需要遍历所有连接(getConnections() 返回的内容)

怎么做？

Answer 1

Collection<Set<IConnection>> sets = scope.getConnections();

for (Set<IConnection> set : sets) {
  for (IConnection connection : set) {
     //do something
  }
}