Create Java code snippets for count min sketch (#3644)

* added code snippet for CMS in Java

* Update CMSExample.java

* format spaces

* use cmsIncrBy simple variant

* more format spaces

---------

Co-authored-by: M Sazzadul Hoque <[email protected]>

Author: Harsh4902

Diff for: src/test/java/io/redis/examples/CMSExample.java

@@ -0,0 +1,49 @@
+//EXAMPLE: cms_tutorial
+//HIDE_START
+package io.redis.examples;
+//HIDE_END
+
+//REMOVE_START
+import redis.clients.jedis.UnifiedJedis;
+import org.junit.Test;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+//REMOVE_END
+
+public class CMSExample {
+
+  @Test
+  public void run() {
+
+    //HIDE_START
+    UnifiedJedis jedis = new UnifiedJedis("redis://localhost:6379");
+    //HIDE_END
+
+    //REMOVE_START
+    jedis.del("bikes:profit");
+    //REMOVE_END
+
+    //STEP_START cms
+    String res1 = jedis.cmsInitByProb("bikes:profit", 0.001d, 0.002d);
+    System.out.println(res1); // >>> OK
+
+    long res2 = jedis.cmsIncrBy("bikes:profit", "Smoky Mountain Striker", 100L);
+    System.out.println(res2); // >>> 100
+
+    List<Long> res3 = jedis.cmsIncrBy("bikes:profit", new HashMap<String, Long>() {{
+      put("Rocky Mountain Racer", 200L);
+      put("Cloudy City Cruiser", 150L);
+    }});
+    System.out.println(res3); // >>> [200, 150]
+
+    List<Long> res4 = jedis.cmsQuery("bikes:profit", "Smoky Mountain Striker");
+    System.out.println(res4); // >>> [100]
+
+    Map<String, Object> res5 = jedis.cmsInfo("bikes:profit");
+    System.out.println(res5.get("width") + " " + res5.get("depth") + " " + res5.get("count")); // >>> 2000 9 450
+    //STEP_END
+  }
+
+}