Add doc

Signed-off-by: pacien <pacien.trangirard@pacien.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/main/java/fr/umlv/java/wallj/viewer/StopWatch.java b/src/main/java/fr/umlv/java/wallj/viewer/StopWatch.java
index 55f0440..3c6b08e 100644
--- a/src/main/java/fr/umlv/java/wallj/viewer/StopWatch.java
+++ b/src/main/java/fr/umlv/java/wallj/viewer/StopWatch.java
@@ -10,6 +10,9 @@ import java.time.Duration;
 public class StopWatch {
   private long startTime = System.currentTimeMillis();
 
+  /**
+   * @return the duration since the creation of the stopwatch
+   */
   public Duration peek() {
     return Duration.ofMillis(System.currentTimeMillis() - startTime);
   }