1 files changed, 44 insertions, 0 deletions
diff --git a/challenge-107/ziameraj16/java/SelfDescriptiveNumber.java b/challenge-107/ziameraj16/java/SelfDescriptiveNumber.java
new file mode 100644
index 0000000000..acfa046fff
--- /dev/null
+++ b/challenge-107/ziameraj16/java/SelfDescriptiveNumber.java
@@ -0,0 +1,44 @@
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class SelfDescriptiveNumber {
+
+    public static void main(String[] args) {
+        int count = 0;
+        int i = 1;
+        while (true) {
+            if (count == 3) {
+                break;
+            }
+            if (isSelfDescriptiveNumber(i)) {
+                System.out.println(i);
+                count++;
+            }
+            i++;
+        }
+    }
+
+    private static boolean isSelfDescriptiveNumber(int number) {
+        String valueAsString = Integer.valueOf(number).toString();
+        Map<Integer, Integer> map = new HashMap(valueAsString.length());
+        for (int i = 0; i < valueAsString.length(); i++) {
+            final int c = Character.getNumericValue(valueAsString.charAt(i));
+            if (map.containsKey(c)) {
+                map.put(c, map.get(c) + 1);
+            } else {
+                map.put(c, 1);
+            }
+        }
+        for (int i = 0; i < valueAsString.length(); i++) {
+            int c = Character.getNumericValue(valueAsString.charAt(i));
+            if (map.getOrDefault(i, 0) != c) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+
+}
+