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+## Digitlen
+
+### Instructions
+
+In a file named `Digitlen.java` write a function `digitlen` that returns the count of digits in the number passed as a parameter.
+
+### Expected Functions
+
+```java
+public class Digitlen {
+    public static int digitlen(long number) {
+        // your code here
+    }
+}
+```
+
+### Usage
+
+Here is a possible `ExerciseRunner.java` to test your function :
+
+```java
+public class ExerciseRunner {
+    public static void main(String[] args) {
+        System.out.println(Digitlen.digitlen(9989898878));
+    }
+}
+```
+
+and its output :
+
+```shell
+$ javac *.java -d build
+$ java -cp build ExerciseRunner
+10
+$
+```