problem about super-Collection of common programming errors

• 
  Andrew Grimm
  ruby-on-rails ruby super
  Override to_xml.What are the difference between these codes. Can someone explain it with proper example ?1.def to_xml(options = {})options.merge!(:methods => [ :murm_case_name, :murm_type_name ])super end2.def to_xml(options = {})superoptions.merge!(:methods => [ :murm_case_name, :murm_type_name ]) end
• 
  Susei
  java inheritance super
  First off I’ll show you my code: public class Person { String _name; int _age; public Person(String name, int age){_name = name;_age = age; } public String toString(){return “Age:” + _age + “. Name: ” + _name;} }public class Principal extends Person{ String _gender; int _rank; public Principal(String name, int age, String gender, int rank){super(name, age);_gender = gender;_rank = rank; } public String toString(){return “Age:” + _age + ” .Name: ” + _name + ” .Gender: ” + _gender + ” .Rank: ” + _
• 
  Jibin
  python derived-class super base-class
  class baseClass():def __init__(self,mark,name):self.mark = markself.name = nameclass derivedClass(baseClass):b1 = derivedClass(name=’Jibin’) print b1.nameThis was my code initially & it worked fine.(Note: I don’t have access to baseClass)But later I had to pass a additional attribute rank to derivedClass.So I edited the code like this.class baseClass():def __init__(self,mark,name):self.mark = markself.name = nameclass derivedClass(baseClass):def __init__(self,rank):self.rank = rank b1 = deri
• 
  Lee
  ruby-on-rails activerecord inheritance super destroy
  I have a Commentable class that inherits from ActiveRecord::Base and an Event class that inherits from Commentables.I have overwritten the destroy methods in both of these classes, and Event.distroy calls super. However, some unexpected things happen. Specifically, the Event’s has_and_belongs_to_many associations are deleted. I think this is happening because some modules are getting included between the Commentables and the Event class, but not sure if there is a way to stop this.Here’s the sim
• 
  Philipp Otto
  objective-c try-catch super
  I am calling a super method from my subclass. But sometimes the object of the superclass (UIWindow) is nil so it will fail. I try to catch the exception but it doesn´t work. The app still crashes. Can anyone tell me why and how I can fix this? – (void)sendEvent:(UIEvent *)event; {@try {[super sendEvent:event];}@catch(NSException *e) {NSLog(@”%@”,e);return; }Thanks a lot
• 
  Ganapathy
  android super home illegalstateexception
  I have a problem with my application and I would love some help.When I press the Home button, the app should be paused, save all state and work fine 🙂 instead i get this error:Below some code from my app. java.lang.RuntimeException: Unable topause activity{be.test.tester/be.test.tester.DataScreen}:java.lang.IllegalStateException:Derived class did not callsuper.onSaveInstanceState() atandroid.app.ActivityThread.performPauseActivity(ActivityThread.java:3641)atandroid.app.ActivityThread.performPau
• 
  EbiDK
  python oop python-2.7 python-2.6 super
  Are there good (suitable for using in real projects) ways or reducing boilerplate in things like thisclass B(A):def qqq(self): # 1 unwanted token “self”super(B, self).qqq() # 7 unwanted tokens plus 2 duplications (“B”, “qqq”)do_something()I want it to look more like this:class B(A):def qqq:superdo_something()or (more realistically)class B(A):@autosuper_beforedef qqq(self):do_something()Is it possible in Python 2.6+ without overt hacks?@link super() in Python 2.x without args
• 
  karlitos
  inheritance coffeescript super parse-error
  I am trying to define a class inherited from another base-class in coffeescript and I am getting parse-error when compiling. Exyctly : Parse error on line 6: Unexpected ‘,’ My code looks like :class MedVisGraphNode constructor : (@nodeId, @nodeLabel) ->class MedVisGenericContainerNode extends MedVisGraphNode constructor : (groupId, groupLabel, @groupType, @outerGroupNode) ->super (groupId, groupLabel)# method which determines if the actual group-node group lies in an another or sist on top
• 
  Nida Iqbal
  android super
  Hi i am new to android dev, the following code gives error 1) The method onCreate(bundle) is undefined for the object type2) The method onCreate(bundle) of type DisplayMessageActivity must be override or implement a supertype method I am using super.onCreate but it is giving me this error?public class DisplayMessageActivity {@SuppressLint(“NewApi”)@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);// Get the message from the intentIntent intent = getI

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