Given 2 arrays of ints, a and b, return true if they have the same first element or they have the same last element. Both arrays will be length 1 or more.

Check Below Code:

package com.test.arrays;

public class CommonArrayEnd 
{
	public static void main(String args[])
	{
		CommonArrayEnd ca = new CommonArrayEnd();
		System.out.println(ca.commonEnd(new int[] {1, 2, 6}, new int[] {1, 2, 6}));
		System.out.println(ca.commonEnd(new int[] {1, 2, 3}, new int[] {7, 3, 2}));
		System.out.println(ca.commonEnd(new int[] {1, 2, 3}, new int[] {1}));
	}
	
	public boolean commonEnd(int[] a, int[] b) 
	{
		return (a[0] == b[0] || a[a.length-1] == b[b.length-1]);
	}
}

Output

true
false
true