Tuesday 17 July 2018

Find duplicate elements and count in java- Interview question Java/Selenium

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

public class DuplicateElementsInArray {


public static void main(String[] args) {
String str = "Java isap latformi111111end 000 666 entla bsbcascvgsvchgnguage";
Map<Character,Integer> duplicate = new HashMap<Character,Integer>();
char[] carray = str.toCharArray();
for (Character c:carray) {
if (c != ' ') {
if(duplicate.containsKey(c))
{
duplicate.put(c, duplicate.get(c)+1);
}
else {
duplicate.put(c, 1);
     }
}
}
Set<Character> set = duplicate.keySet();

for (Character c:set) {
if(duplicate.get(c)>1)
{
System.out.println(c+" "+duplicate.get(c));
}
}
// TODO Auto-generated method stub

}

}

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