Is there a Java equivalent of KeyValuePair<T, T> (i.e. a single hashmap 'cell') type?

I used to find these very useful in .NET and I'm unsure of any equivalent.

How can I return a single key value pair in Java?

Implement Key Value Pair Using Properties Class in Java The Properties class of Java collections can be used to store data into key-value pairs. The getProperty() method of the Properties class returns the value associated with the key.

Which is used to manage the data in key value pair in Java?

HashMap is a part of Java's collection since Java 1.2. It provides the basic implementation of the Map interface of Java. It stores the data in (Key, Value) pairs, and in order to access a value, one must know its key.

There's Map.Entry<K, V>, which represents map entries. I'm not a C# programmer, but this seems like the most similar thing to what you want.