rnjava86
diff --git a/‎com/Jobservers.java renamed to ‎com/patternObsTest/Jobservers.java b/‎com/Jobservers.java renamed to ‎com/patternObsTest/Jobservers.java
diff --git a/‎com/Jsubject.java renamed to ‎com/patternObsTest/Jsubject.java b/‎com/Jsubject.java renamed to ‎com/patternObsTest/Jsubject.java
diff --git a/‎com/Observer.java renamed to ‎com/patternObsTest/Observer.java b/‎com/Observer.java renamed to ‎com/patternObsTest/Observer.java
diff --git a/‎com/Subject.java renamed to ‎com/patternObsTest/Subject.java b/‎com/Subject.java renamed to ‎com/patternObsTest/Subject.java
diff --git a/‎com/valLength.java renamed to ‎com/patternObsTest/valLength.java b/‎com/valLength.java renamed to ‎com/patternObsTest/valLength.java
diff --git a/‎com/singleton/SingletonTradeSafe.java
Lines changed: 18 additions & 0 deletions b/‎com/singleton/SingletonTradeSafe.java
Lines changed: 18 additions & 0 deletions
@@ -0,0 +1,18 @@
+package com.singleton;
+
+/**
+ * Created by sdmg15 on 18/03/17.
+ */
+public class SingletonTradeSafe {
+
+    private static SingletonTradeSafe instance;
+
+    private SingletonTradeSafe(){}
+
+    public static synchronized SingletonTradeSafe getInstance(){
+        if(instance == null){
+            instance = new SingletonTradeSafe();
+        }
+        return  instance;
+    }
+}