Finding repeated words on a string and counting the repetitions

Question

I need to find repeated words on a string, and then count how many times they were repeated. So basically, if the input string is this:

String s = \"House, House         


        

Answer 1

package string;

import java.util.HashMap;
import java.util.Map;
import java.util.Set;

public class DublicatewordinanArray {
public static void main(String[] args) {
String str = "This is Dileep Dileep Kumar Verma Verma";
DuplicateString(str);
    }
public static void DuplicateString(String str) {
String word[] = str.split(" ");
Map < String, Integer > map = new HashMap < String, Integer > ();
for (String w: word)
if (!map.containsKey(w)) {
map.put(w, 1);
    }
else {
map.put(w, map.get(w) + 1);
        }
Set < Map.Entry < String, Integer >> entrySet = map.entrySet();
 for (Map.Entry < String, Integer > entry: entrySet)
if (entry.getValue() > 1) {
 System.out.printf("%s : %d %n", entry.getKey(), entry.getValue());
}
 }
}