Spotting Unique Characters in a String | JAVA INTERVIEW QUESTIONS

Welcome to our comprehensive Java tutorial series where we tackle commonly asked technical interview questions. In this particular video, we delve into a popular Java programming problem - identifying and returning unique characters in a given string.

This video is designed to enhance your problem-solving skills and increase your confidence for your next Java interview. We walk you through a practical task where the objective is to find unique characters in a string, which can contain digits, letters, or special characters. We not only explain the concept but also provide an in-depth demonstration with coding examples and test cases. The solution shown in the video maintains the order of unique characters, and handles strings of varying lengths efficiently.

Whether you're a seasoned developer looking to brush up your skills or a beginner preparing for your first tech interview, this video is an invaluable resource. You'll gain a better understanding of how to use Java's string methods like 'indexOf' and 'lastIndexOf' to solve this problem effectively.

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[mohammadsuhail]

Thanks for teaching, there is another simplest way of doing this using enhanced for loop here it is
String name = "india";
String unique = "";
char[] charArray = name.toCharArray();
for (char c : charArray) {
if (name.indexOf(c) == name.lastIndexOf(c)) {
unique += c;
}
}
System.out.println(unique);

[iskuhiparzyan]

can you please write program which will print first non repeated character?