用Java将对象视为可迭代对象的最佳方法是什么？

Question

What is the best way to treat a single object as iterable?

For example, in the following case...

public void fun(Object o) {
    fun(new TempList(o));
}

public void fun(Iterable<Object> os) {
    try {
    for(Object o : os)
        // Write to server
        System.out.println(o);
    } catch(Exception e) {
      // log e
    }
}

UPDATE:
Rewording this part.

A function already exists that takes an iterable of things and processes them ( fun(Iterable<Object> os) ). I am adding an alias for this function that takes a single item instead ( fun(Object o) ). This function will be called a lot by different instances, so I want the most resource efficient way to call the Iterable function with a single item (whatever creates the least trash/gets cleaned up the fastest).

Or, exactly as the question title says, What is the best way to pass an Object to a function that requires an Iterable<Object> ?

Answer 1

使用Collections.singleton(item)

Answer 2

也许您可以看看Collections.singletonList(object) 。