merge two unsorted arrays java

• In Java, we can merge two unsorted arrays in different ways. One of the easy way is by using TreeSet.

Program for merge two unsorted arrays:

import java.util.Set;
import java.util.TreeSet;

public class MergeTwoArrays {
    public static void main(String[] args) {
        int[] a = { 1, 2, 5, 4, 3, 6 };
        int[] b = { 7, 12, 9, 10, 8 };
        int[] finalArray = new int[a.length + b.length];

        Set<Integer> ts = new TreeSet<Integer>();

        for (int i = 0; i < a.length; i++) {
            ts.add(a[i]);
        }

        for (int i = 0; i < b.length; i++) {
            ts.add(b[i]);
        }

        System.out.println("Merge arrays using tree set="+ts);
        System.out.println("<<----------------------------->>");

        int k = 0;
        for (int v : ts) {
            finalArray[k] = v;
            k++;
        }
        System.out.println("Final Merged Array");
        for (int v1 : finalArray) {
            System.out.print(v1 + " ");
        }
    }
}
Output:
merge two unsorted arrays java
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