--- a/java.rst	Sat Jan 18 21:58:46 2020 +0200
+++ b/java.rst	Mon Jan 20 17:42:41 2020 +0200
@@ -9,7 +9,6 @@
 Class version.
 ==============
 
-
 =========  ====== =====================
 major      minor  Java platform version
 =========  ====== =====================
@@ -31,31 +30,25 @@
 Access modifiers.
 =================
 
-Public.
--------
+``public``:
 
 * Public class is visible in other packages.
 * Public field is visible everywhere (class must be public too).
 
-Private.
---------
+``private``:
 
 * Private variables or methods may be used only by an instance of the same
   class that declares the variable or method
 * A private feature may only be accessed by the class that owns the feature.
 
-Protected.
-----------
+``protected``:
 
 * Is available to all classes in the same package and also available to all
   subclasses of the class that owns the protected feature.
 * This access is provided even to subclasses that reside in a different
   package from the class that owns the protected feature.
 
-default.
---------
-
-What you get by default ie, without any access modifier.
+Default (ie, without any access modifier):
 
 * It means that it is visible to all within a particular package.
 
@@ -233,11 +226,12 @@
 
 Save dump to file::
 
-  $ jmap -dump:format=b,file=heap.dump $PID
+  $ jmap -dump:format=b,file=heap.hprof $PID
+  $ sudo -u $USR jcmd $PID GC.heap_dump heap.hprof
 
 With ``live`` option only reachable objects are dumped::
 
-  $ jmap -dump:live,format=b,file=heap.dump $PID
+  $ jmap -dump:live,format=b,file=heap.hprof  $PID
 
 Creating heap dump on OutOfMemory error
 =======================================