Finding common element in two Arrays

 

import java.util.*;

import java.util.Arrays;

import java.util.HashSet;

public class CommonEleTwoArray {

public static void main(String args[]) {

String[] arr1 = { "Python", "Java", "PHP", "c#", "C++", "SQL" };

String[] arr2 = { "MySQL", "SQL", "SQLite", "Oracle", "DB2", "Java" };

System.out.println("Array 1 " + Arrays.toString(arr1));

System.out.println("Array 2 " + Arrays.toString(arr2));

HashSet<String> result = new HashSet<String>();

for (int i = 0; i < arr1.length; i++) {

for (int j = 0; j < arr2.length; j++) {

if (arr1[i].equals(arr2[j])) {

result.add(arr1[i]);

}

}

}

System.out.println("Common elements are");

System.out.println(result);

}

}