Count Unique Characters in a String Using Set | Java Programming Problem
on channel: The Corporate Villager
In this video, we'll solve a Java programming problem where we take a String and find the number of unique characters using a Set.
We'll use a Set because it automatically removes duplicate elements. This makes it perfect for finding unique characters in a String.
📌 Topics Covered:
Set in Java
HashSet
Unique characters
Removing duplicates
String traversal
charAt()
Java Collections Framework
Practical Java problem solving
Example:
Input: programming
Unique Characters: 8
🎯 Perfect for Java beginners, Collections practice, and logic-building.
#Java #HashSet #SetInJava #UniqueCharacters #JavaCollections #JavaProgramming
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