added first dz

methods.java

@@ -0,0 +1,19 @@
+import java.util.HashMap;
+import java.util.Map;
+
+public class methods {
+    static Map init(int[] a) {
+        Map<Integer, Integer> counter = new HashMap<>();
+        for (int x: a) {
+            int newValue = counter.getOrDefault(x, 0) + 1;
+            counter.put(x, newValue);
+        }
+        return counter;
+    }
+
+    static void showCounter(Map<Integer, Integer> counter) {
+        for (Map.Entry<Integer, Integer> a : counter.entrySet()) {
+            System.out.printf("%d - встречается %d раз\n", a.getKey(), a.getValue());
+        }
+    }
+}

program.java

@@ -0,0 +1,6 @@
+public class program {
+    public static void main(String[] args) {
+        int[] a = new int[] {1, 3, 5, 6, 6, 6, 6, 6, 7, 3, 1, 1, 1, 1, 9};
+        methods.showCounter(methods.init(a));
+    }
+}