Single Occurance of elements in the Array

class ArrayDemo16
{
static int[] SingleOccur(int x[])
{
int i,temp=0,a[],j,counter,k=0;
a = new int[x.length];
for(i=0;i<x.length;i++)
{
System.out.print(" "+x[i]);
}
temp = x[0];
for(i=0;i<x.length;i++)
{
counter = 0;
for(j=0;j<=i;j++)
{
if(x[i]==x[j])
counter++;
}
if(counter==1)
{
a[k] = x[i];
k++;
}
}
return a;
}
public static void main(String... S)
{
int i;
int y[]=(SingleOccur(new int[]{1,12,3,4,5,5,4,3,4,6,7,5,4,1,1,1,1,1}));
System.out.println("");
for(i=0;i<y.length;i++)
System.out.print(" "+y[i]+" ");
}
}