Java - How to create new Entry (key, value)

Question

I\'d like to create new item that similarly to Util.Map.Entry that will contain the structure key, value.

The problem is that

Answer 1

Why Map.Entry? I guess something like a key-value pair is fit for the case.

Use java.util.AbstractMap.SimpleImmutableEntry or java.util.AbstractMap.SimpleEntry

Answer 2

You could actually go with: Map.Entry<String, String> en= Maps.immutableEntry(key, value);

Answer 3

org.apache.commons.lang3.tuple.Pair implements java.util.Map.Entry and can also be used standalone.

Also as others mentioned Guava's com.google.common.collect.Maps.immutableEntry(K, V) does the trick.

I prefer Pair for its fluent Pair.of(L, R) syntax.

Answer 4

Try Maps.immutableEntry from Guava

This has the advantage of being compatible with Java 5 (unlike AbstractMap.SimpleEntry which requires Java 6.)

Answer 5

If you are using Clojure, you have another option:

(defn map-entry
  [k v]
  (clojure.lang.MapEntry/create k v))