> 原文:[https://www . geeksforgeeks . org/concurrentlinkedeque-contains-method-in-Java-with-examples/](https://www.geeksforgeeks.org/concurrentlinkeddeque-contains ...
One of the nasty little traps a Java developer can run into occurs when Collection.contains(Object) is not used with appropriate understanding. I demonstrate this potential trap in this post. This is ...