Given a Set of String, the task is to convert the Set to a comma separated String in Java.
Examples:
Input: Set<String> = ["Geeks", "ForGeeks", "GeeksForGeeks"] Output: "Geeks, For, Geeks" Input: Set<String> = ["G", "e", "e", "k", "s"] Output: "G, e, e, k, s"
Approach: This can be achieved with the help of join() method of String as follows.
- Get the Set of String.
- Form a comma separated String from the Set of String using join() method by passing comma ‘, ‘ and the set as parameters.
- Print the String.
Below is the implementation of the above approach:
// Java program to convert Set of String// to comma separated String import java.util.*; public class GFG { public static void main(String args[]) { // Get the Set of String Set<String> set = new HashSet<>( Arrays .asList("Geeks", "ForGeeks", "GeeksForGeeks")); // Print the Set of String System.out.println("Set of String: " + set); // Convert the Set of String to String String string = String.join(", ", set); // Print the comma separated String System.out.println("Comma separated String: " + string); }} |
Output:
Set of String: [ForGeeks, Geeks, GeeksForGeeks] Comma separated String: ForGeeks, Geeks, GeeksForGeeks
