List vs Set vs Map in Java
In this article, you will learn about the difference between List, Set, and Map. But before discussing the differences, you must know about List, Set, and Map with their examples.
What is List interface?
The Java collections interface's sub-interface is called the List interface. It offers index-based ways to add, update, remove, and search for elements. Duplicate elements are also possible, and the null entries can also be kept in the list. Lists enable positional access and the insertion of elements while maintaining the insertion order. It was located in the package java.util. For a better understanding, let's look at an illustration where you can see how to add elements in Java using the list interface.
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What is Set?
The Set is present in Java and uses an unordered approach. Java's collection interface enhances with the util package. In the Set, duplicate items will not be printed in the output and will not be taken into account. For a better understanding, let's look at an example where you will see how to add items using a set interface in Java. Let's look at it.
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What is Map?
Java Map, or java.util.Map, is a java interface. A key and a value are mapped by the term "map". A Java Map is able to hold pairs of keys and values in more detail. An individual value is connected to each key, and the value can later be retrieved using only the key after being saved in a Map. For a better understanding, let's look at an example where you can see how to add items in Java by utilising the Map interface.
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Head-to-head comparison between List, Set and Map
Here, you will learn the head-to-head comparisons between List, Set, and Map. The main differences between List, Set, and Map are as follows: