Find Common Elements Between Two Arrays In Java

Chapter: Interview Programs Last Updated: 26-08-2016 14:45:11 UTC

Program:

            /* ............... START ............... */
                
import java.util.HashSet;

public class JavaIntersectionOfTwoArrays {

	public static void main(String[] args) {
		String[] s1 = { "ONE", "TWO", "THREE", "FOUR", "FIVE", "FOUR" };

		String[] s2 = { "THREE", "FOUR", "FIVE", "SIX", "SEVEN", "FOUR" };

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

		for (int i = 0; i < s1.length; i++) {
			for (int j = 0; j < s2.length; j++) {
				if (s1[i].equals(s2[j])) {
					set.add(s1[i]);
				}
			}
		}

		System.out.println(set);
	}
}
                /* ............... END ............... */
        

Output

[FIVE, FOUR, THREE]

Tags

Find Common Elements Between Two Arrays, Java, Interview Programs

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