Welcome to collectivesolver - Programming & Software Q&A. A website you can trust. All programs tested and works. Contact: aviboots(AT)netvision.net.il
BlueHost Web Hosting

Bonsai Boy of New York Bonsai Trees and Accessories

Liquid Web iThemes WordPress Hosting

Ecommerce Software - Best Ecommerce Platform Made for You - Free Trial

DreamHost Web Hosting


getResponse autofunnels

Liquid Web Cloud VPS Hosting

Disclosure We are a professional Information website that receives compensation from some of the links whose we show you with Information. It means that my content may contain affiliate links.

12,128 questions

16,523 answers

573 users

How to find duplicate words and letters in a string with Java

Online Web Development & Programming Courses | Udemy
13 views
asked Jun 27, 2019 by avibootz
edited Jun 28, 2019 by avibootz

1 Answer

0 votes
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.Collections;
import java.util.Arrays;

public class MyClass {
    public static void main(String args[]) {
        String s = "java php php php java x y x y y y c# python q w";
 
        List<String> list = Arrays.asList(s.split(" "));
        System.out.println(list);
 
        Set<String> set_without_duplicates = new HashSet<String>(list);
        System.out.println(set_without_duplicates);
        
        for (String word : set_without_duplicates) {
            if (Collections.frequency(list, word) > 1)
                System.out.println(word + ": " + Collections.frequency(list, word));
        }
    }
}
 


 
/*
run:

[java, php, php, php, java, x, y, x, y, y, y, c#, python, q, w]
[c#, python, q, java, w, x, php, y]
java: 2
x: 2
php: 3
y: 4

*/

 




answered Jun 27, 2019 by avibootz
...