[Example]
<1 2 3 4> = <3 1 2 4>
<1 2 3 4> != <3 4 1 1>

and ummm it is in java. cant use hashmap table or anything just pure without library.

I know there are two ways.
1. sort them and compare the array index by index
2. use two for loops and compare the outer index with the inner index. ( i have been trying with this but still not working)

for(int i = 0; i < n; i++)
    {
        for(int j = 0; j < n; j++)
        {   
            if(a[i] != a[j] && j == n)
                return false;
        }
    }

    return true;

anything wrong with the code ? thanks