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java Programming Glossary: subclassesInterview : Can we instantiate abstract class? http://stackoverflow.com/questions/13670991/interview-can-we-instantiate-abstract-class compilation by the compiler. In general all the anonymous subclasses in your class will be named in this fashion Poly 1.class Poly..
Polymorphism vs Overriding vs Overloading http://stackoverflow.com/questions/154577/polymorphism-vs-overriding-vs-overloading is not definable for Humans. It is only definable for the subclasses Male and Female. Also Human is an abstract concept &mdash You..
Why doesn't Java allow overriding of static methods? http://stackoverflow.com/questions/2223386/why-doesnt-java-allow-overriding-of-static-methods can subclass a class and the objects implementing those subclasses will have different behaviors for the same methods defined in.. methods defined in the superclass and overridden in the subclasses . A static method is not associated with any instance of a class..
Can an abstract class have a constructor? http://stackoverflow.com/questions/260666/can-an-abstract-class-have-a-constructor in the parent abstract class the constructor used in subclasses must be specified. Abstract constructors will frequently be..
How can I add to List<? extends Number> data structures? http://stackoverflow.com/questions/2776975/how-can-i-add-to-list-extends-number-data-structures and still guarantee it will produce values of type T or subclasses of T. But you cannot add to the src list. The dest list declaration..
Download a file with Android, and showing the progress in a ProgressDialog http://stackoverflow.com/questions/3028306/download-a-file-with-android-and-showing-the-progress-in-a-progressdialog true The AsyncTask will look like this usually subclasses of AsyncTask are declared inside the activity class. that way..
Interfaces with static fields in java for sharing 'constants' http://stackoverflow.com/questions/320588/interfaces-with-static-fields-in-java-for-sharing-constants nonfinal class implements a constant interface all of its subclasses will have their namespaces polluted by the constants in the..
What's wrong with overridable method calls in constructors? http://stackoverflow.com/questions/3404301/whats-wrong-with-overridable-method-calls-in-constructors of otherwise abstract methods to the super constructor in subclasses. But that could be hard to read with many parameters. java..
How to use the toString method in Java? http://stackoverflow.com/questions/3615721/how-to-use-the-tostring-method-in-java is easy for a person to read. It is recommended that all subclasses override this method. The toString method for class Object returns..
Differences between HashMap and Hashtable? http://stackoverflow.com/questions/40471/differences-between-hashmap-and-hashtable null key and any number of null values. One of HashMap's subclasses is LinkedHashMap so in the event that you'd want predictable..
How do I make the method return type generic? http://stackoverflow.com/questions/450807/how-do-i-make-the-method-return-type-generic Animal class where each Animal can have many friends. And subclasses like Dog Duck Mouse etc which add specific behavior like bark..
How do you find all subclasses of a given class in Java? http://stackoverflow.com/questions/492184/how-do-you-find-all-subclasses-of-a-given-class-in-java do you find all subclasses of a given class in Java How does one go about and try to find.. class in Java How does one go about and try to find all subclasses of a given class or all implementors of a given interface in.. classpath Eclipse can only tell you about the super and subclasses in what seems to be an efficient amount of time because it already..
http://stackoverflow.com/questions/499437/in-java-when-should-i-create-a-checked-exception-and-when-should-it-be-a-runti
Why can't I define a static method in a Java interface? http://stackoverflow.com/questions/512877/why-cant-i-define-a-static-method-in-a-java-interface I think it should just call an empty method i.e. . All subclasses would be forced to implement the static method so they'd all..
The case against checked exceptions http://stackoverflow.com/questions/613954/the-case-against-checked-exceptions never reply to is this If you throw RuntimeException subclasses instead of Exception subclasses then how do you know what you.. you throw RuntimeException subclasses instead of Exception subclasses then how do you know what you are supposed to catch If the answer..
How to mark JTable cell input as invalid? http://stackoverflow.com/questions/7531513/how-to-mark-jtable-cell-input-as-invalid to catch exceptions raised by constructing specific Number subclasses with invalid String values. If you don't need such generic behavior..
Initialization in paintComponent doesn't work http://stackoverflow.com/questions/11376272/initialization-in-paintcomponent-doesnt-work understand why you override the method getPreferredSize . Subclasses of JComponent override getPreferredSize so that pack can size..
Java RMI + SSL + Compression = IMPOSSIBLE! http://stackoverflow.com/questions/2374374/java-rmi-ssl-compression-impossible the streams of Sockets from another Socket factory. Subclasses have to overwrite the @link #wrap method. Instances of this.. we only declare the wrap method Wraps a pair of streams. Subclasses must implement this method to do the actual work. @param input..
Test if a class contains an instance variable based on its name http://stackoverflow.com/questions/6629995/test-if-a-class-contains-an-instance-variable-based-on-its-name the object declares a testVariable field false otherwise. Subclasses should override this method protected boolean hasTestVariableField..
Rotate a Java Graphics2D Rectangle? http://stackoverflow.com/questions/7517688/rotate-a-java-graphics2d-rectangle not paint in the insets area allocated to the border. Subclasses can just override this method as always. A subclass that just..
What is the relationship between component family, component type and renderer type? http://stackoverflow.com/questions/8076625/what-is-the-relationship-between-component-family-component-type-and-renderer-t used to look up renderers associated with this component. Subclasses of a generic UIComponent class will generally inherit this property..
Differences betweeen Exception and Error http://stackoverflow.com/questions/912334/differences-betweeen-exception-and-error to indicate that an assertion has failed. LinkageError Subclasses of LinkageError indicate that a class has some dependency on..
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