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How To Find Duplicate Characters In A String In Java

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How To Find Duplicate Characters In A String In Java

70,589 views October 25, 2019 8:10

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ChannelAlex Lee

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This is the exact code to find duplicate characters in a String in Java! ✅I show how to use a for loop and charAt() to find duplicates.

👑Start practicing now with 10 free java programs - alexlorenlee.com/
🌅 Source Code - github.com/alexlorenlee/JavaTutorialCode/blob/m…

To find duplicate characters in a string using java first create your input string, use a for loop to get each character in the string, store each character in a new string, and check if each current character has been added. If the current character has been passed, then we know the character is a duplicate!

This java program to find duplicate characters in a string can be tricky at first... But SURELY you'll get it :) If you followed along, congrats! You learned-by-doing!

I hope you enjoyed this tutorial on how to find duplicate characters in a string in java! I like to have a nice mix of tutorials and actual projects for you all :)

Do you want to learn how to code from scratch, in Java? Check out my Java Tutorial For Beginners: youtu.be/woJb2hAfkO0

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Alex Lee

About this tutorial

Alex Lee published this 8:10 video tutorial on October 25, 2019. It has been watched 70,589 times on YouTube.

Channel
Alex Lee
Category
Education
Duration
8:10
Published
October 25, 2019
Views
70,589
Likes
1,354

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Further reading

  • Java - Find duplicate characters in String - HowToDoInJava howtodoinjava.com

    This article presents a simple Java program to find duplicate characters in a String. This can be a possible Java interview question while interviewer may be evaluating your coding skills. You can use this code to find…

  • Java program to find the duplicate characters in a string ... javatpoint.com

    Java program to find the duplicate characters in a string. In this program, we need to find the duplicate characters in the string. Great responsibility. To find the duplicate character from the string, we count the occ…

  • Java Program to Find Duplicate Characters in a String w3schools.in

    Duplicate Characters are: s o. Explanation: Here in this program, a Java class name DuplStr is declared which is having the main() method.All Java program needs one main() function from where it starts executing program.

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