Map Entry in Java

Map Entry is a special type of data structure in the programming language Java. It is used to store key-value pairs, where the key is unique and the value can be any type of data.

• What is a Map Entry?
• A Map Entry is a pair of key and value stored in a map.
• The key is unique within the map and cannot be changed after it has been added.
• The value can be any type of data, but it must be compatible with the type of the map.

There are two main types of Map Entries in Java:

• Immutable Map Entry - This type of Map Entry is immutable, which means that its key and value cannot be changed after it has been created.
• Mutable Map Entry - This type of Map Entry allows the key and value to be changed after it has been created.