hasMoreElements()
时间: 2023-03-04 19:38:43 浏览: 62
`hasMoreElements()` is a method defined in the `Enumeration` interface in Java, which is used to check if there are more elements in the collection that the enumeration is iterating over.
The `hasMoreElements()` method returns a boolean value `true` if there are more elements in the collection that have not been accessed yet, and `false` if there are no more elements left to be accessed. This method is commonly used in a loop to iterate through all the elements in the collection while checking for the availability of more elements.
For example, here is a simple loop that uses the `hasMoreElements()` method to iterate over an `Enumeration`:
```
Enumeration<String> enumeration = someCollection.elements();
while (enumeration.hasMoreElements()) {
String element = enumeration.nextElement();
// Do something with the element
}
```
In this example, the `hasMoreElements()` method is used to determine if there are more elements in the `Enumeration`, and if there are, the `nextElement()` method is called to retrieve the next element in the collection. The loop continues until there are no more elements left in the `Enumeration`.
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