How to get a certain array element's key?

How to get a certain array element's key?

I'm pretty new to java, and I'm trying to create a simple method that
sorts inputted numbers, either ascending or descending. However, there's a
problem that I can't put in repeated values. Is there a way to get the key
of a certain item of an array??
My code:
import java.io.Console;
public class TestSort {
public static void main(String args[]) {
Console c = System.console();
if (c == null) {
System.err.println("No console.");
System.exit(1);
}
System.out.println("TESTSORT.java");
System.out.println("-------------");
System.out.println("Type in a set of numbers here:");
String in = c.readLine();
System.out.println("(A)scending or (D)escending");
String ad = c.readLine();
boolean d = false;
if(ad.equals("a")) d = false;
else if(ad.equals("d")) d = true;
else {
System.out.println("Invalid Input.");
System.exit(1);
}
String[] in2 = in.split(" ");
int[] x = new int[in2.length];
int count1 = 0;
for(String val : in2)
x[count1++] = Integer.parseInt(val);
int[] a = new int[x.length];
int count = 0;
for(int y : x) {
for(int z : x) {
// if index of y equals index of z continue
if(z < y) count++;
}
a[count] = y;
count = 0;
}
if(d) {
int[] arr3 = new int[a.length];
int length = a.length;
for(int b : a) arr3[--length] = b;
for(int b : arr3) System.out.println(b);
} else
for(int b : a)
System.out.println(b);
}
}
This program just counts up the number of other numbers smaller than
itself, but not including itself. However, it doesn't differentiate itself
from other numbers with the same value.
Help would be appreciated.
Thanks.