Merge and Compare two Arrays using JAVA

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.io.*;
public class MergeCompare {
    public static void main(String args[]) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System. in ));
        System.out.println("1-Want to merge two arrays..?");
        System.out.println("2-Want to compare two arrays..?");
        System.out.println();
        System.out.print("Select any option: ");
        int select = Integer.parseInt(br.readLine());
        switch (select) {
            case 1:
                String a[] = {
                    "S", "U", "N"
                };
                String b[] = {
                    "D", "A", "Y"
                };
                List list = new ArrayList(Arrays.asList(a));
                list.addAll(Arrays.asList(b));
                Object[] c = list.toArray();
                System.out.println(Arrays.toString(c));
                break;
            case 2:
                int[] arr1 = {
                    1, 2, 3, 4, 5, 6, 6
                };
                int[] arr2 = {
                    1, 2, 3, 4, 5, 6, 6
                };
                int[] arr3 = {
                    1, 2, 3
                };
                System.out.println("Is array 1 equal to array 2?? " + Arrays.equals(arr1, arr3));
                System.out.println("Is array 1 equal to array 3?? " + Arrays.equals(arr1, arr2));
                break;
        }
    }
}