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java Programming Glossary: dogIs List<Dog> a subclass of List<Animal>? Why aren't Java's generics implicitly polymorphic? http://stackoverflow.com/questions/2745265/is-listdog-a-subclass-of-listanimal-why-arent-javas-generics-implicitly-p List Dog a subclass of List Animal Why aren't Java's generics implicitly.. polymorphism. Assume the following hierarchy Animal Parent Dog Cat Children So suppose I have a method doSomething List Animal.. of inheritance and polymorphism I would assume that a List Dog is a List Animal and a List Cat is a List Animal and so either..
http://stackoverflow.com/questions/40480/is-java-pass-by-reference are passed by value. It goes like this public void foo Dog d d.getName .equals Max true d new Dog Fifi d.getName .equals.. public void foo Dog d d.getName .equals Max true d new Dog Fifi d.getName .equals Fifi true Dog aDog new Dog Max foo aDog.. Max true d new Dog Fifi d.getName .equals Fifi true Dog aDog new Dog Max foo aDog aDog.getName .equals Max true In this..
What is an efficient way to implement a singleton pattern in Java? http://stackoverflow.com/questions/70689/what-is-an-efficient-way-to-implement-a-singleton-pattern-in-java Elvis INSTANCE private final String favoriteSongs Hound Dog Heartbreak Hotel public void printFavorites System.out.println..
How to clone ArrayList and also clone its contents? http://stackoverflow.com/questions/715650/how-to-clone-arraylist-and-also-clone-its-contents clone its items in Java 1.5 For example I have ArrayList Dog dogs getDogs ArrayList Dog clonedList ....something to do with.. items in Java 1.5 For example I have ArrayList Dog dogs getDogs ArrayList Dog clonedList ....something to do with dogs...... For example I have ArrayList Dog dogs getDogs ArrayList Dog clonedList ....something to do with dogs.... And I would expect..
Finding the position of search hits from Lucene http://stackoverflow.com/questions/1311199/finding-the-position-of-search-hits-from-lucene the content is The quick brown fox jumps over the lazy dog . Next a search is performed for fox dog . Obviously the document.. over the lazy dog . Next a search is performed for fox dog . Obviously the document would be a hit. In this scenario can.. something like match fox startIndex 10 length 3 match dog startIndex 34 length 3 I suspect that it could be implemented..
http://stackoverflow.com/questions/13440201/how-to-resize-text-in-java in px String s The quick brown fox jumps over the lazy dog. final BufferedImage bi new BufferedImage w h BufferedImage.TYPE_INT_RGB..
Parsing CSV input with a RegEx in java http://stackoverflow.com/questions/1441556/parsing-csv-input-with-a-regex-in-java For instance the quick brown fox jumps over the lazy dog breaks down into the quick brown fox jumps over the lazy dog.. breaks down into the quick brown fox jumps over the lazy dog Great Now I want to drop the quotes so I added the lookahead.. the desired result the quick brown fox jumps over the lazy dog now I get this breakdown the quick brown fox jumps over the..
Any simple way to explain why I cannot do List<Animal> animals = new ArrayList<Dog>()? [duplicate] http://stackoverflow.com/questions/2346763/any-simple-way-to-explain-why-i-cannot-do-listanimal-animals-new-arraylistd explain this to a layman easily Animal animal new Dog . A dog is a kind of animal but a list of dogs is not a list of animals... animal new Dog . A dog is a kind of animal but a list of dogs is not a list of animals. java generics oop covariance share..
Is List<Dog> a subclass of List<Animal>? Why aren't Java's generics implicitly polymorphic? http://stackoverflow.com/questions/2745265/is-listdog-a-subclass-of-listanimal-why-arent-javas-generics-implicitly-p Illegal code because otherwise life would be Bad List Dog dogs new List Dog List Animal animals dogs Awooga awooga animals.add.. be Bad List Dog dogs new List Dog List Animal animals dogs Awooga awooga animals.add new Cat Dog dog dogs.get 0 This should.. Animal animals dogs Awooga awooga animals.add new Cat Dog dog dogs.get 0 This should be safe right Suddenly you have a very..
http://stackoverflow.com/questions/3291637/alternatives-to-java-lang-reflect-proxy-for-creating-proxies-of-abstract-classes Is there a class that allows me to do the following Dog dog SomeOtherProxy.newProxyInstance classLoader Dog.class h dog.fetch.. SomeOtherProxy.newProxyInstance classLoader Dog.class h dog.fetch Will be handled by the invocation handler dog.bark Will.. h dog.fetch Will be handled by the invocation handler dog.bark Will NOT be handled by the invocation handler java dynamic..
Java library for free-text diff [closed] http://stackoverflow.com/questions/479654/java-library-for-free-text-diff moved around. The quick brown fox jumped over the lazy dog. The quick yellow fox jumped over the well bred dog. java.. dog. The quick yellow fox jumped over the well bred dog. java string text comparison diff share improve this question..
Pass by value or Pass by reference in Java? http://stackoverflow.com/questions/7301637/pass-by-value-or-pass-by-reference-in-java walkDog method and drinkWater changes some variable on the dog object then since both references point to the same object which..
List of useful environment settings in Java http://stackoverflow.com/questions/7585699/list-of-useful-environment-settings-in-java String sentence The quick brown fox jumped over the lazy dog. static String sep System.getProperty line.separator static..
Return data from AsyncTask class http://stackoverflow.com/questions/7618614/return-data-from-asynctask-class connect with this many pairs pairs.size for NameValuePair dog pairs Log.d TAG example dog.toString Execute the request.. for NameValuePair dog pairs Log.d TAG example dog.toString Execute the request HttpResponse response try Prepare..
http://stackoverflow.com/questions/8364787/how-do-you-import-a-font l new JLabel The quick brown fox jumps over the lazy dog. 0123456789 l.setFont font JOptionPane.showMessageDialog null..
Internal padding for JTextArea with background Image http://stackoverflow.com/questions/8462414/internal-padding-for-jtextarea-with-background-image l new JLabel The quick brown fox jumped over the lazy dog l.setBorder new TextBubbleBorder Color.MAGENTA.darker 2 4 0..
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