[Solved] - How to Find First Repeated Character in String?? Example Tutorial | Code Below

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Hello hello guys, today in this video I will show you guys how to find the first repeated character in string in Java.

We can use the algorithm that we used to find the duplicated character in the array by using nested for loop. However, in this video, I will implement another algorithm that is more optimized. Firstly, we will create an empty Hash, then scan each character of the input string and insert value to each key in the hash. If any character is already present in Set. Return that character is the first repeating character

This is also a good Java programming exercise for beginners to practice coding.

I have also posted a GitHub link to the code.
https://github.com/LongLong2310/Javarevisited/blob/ae572c322d0195384304f55859f0c49d7e48f2ec/firstRepeated.java

Tags:
Java
Coding
Hashset
String
Duplicated
Character

#java #coding #Hashset #Characyer #100DaysOfCode #Exercise #DuplicatedCharacter