compare numbers in array in java

1for (int i = 0; i < a.length; i++) 
2{
3    for (int k = i+1; k < a.length; k++) 
4    {
5        if (a[i] != a[k]) 
6         {
7            System.out.println(a[i]+"not the same with"+a[k]+"\n");
8        }
9    }
10}