Why does printing a Java array show a memory location

int[] answer= new int[map.size()];  
HashMap map = new HashMap();  

for (int j=0; j    int x=map.get(keys.get(j));  
    answer[j]=x;  
}  

return answer  

When I print x using System.out.println(x) in the loop, I get values of 1, 2, 3 but when I return the answer and print it, I get [I@9826ac5. Any idea why?