This is to be stored in a file called PackTest.java in a directory other than main. b). Create a class called PackTest1, which also imports the same package but creates an object of class SubClass. package main; public class Main1 { int i=9; private int k=10; public int j=10; ...
You can create your own exception class by defining a subclass of Exception.The Exception class does not define any methods of its own. It inherits methods provided by Throwable.All exceptions have the methods defined by Throwable available to them. They are shown in the following list....
By creating anabstract classthat has a constructor, you ensure that its subclasses will have thefinalvariable initialized. The variable is initialized when an instance of the subclass is created and then can’t be changed. There is one condition when you might want to define a constructor in a...
or minimum size of the component, measured in pixels. Many JComponent classes have setter and getter methods. For those non-JComponentsubclasses, which do not have the corresponding setter methods, you can set a component's preferred, maximum, or minimum size by creating a subclass and overridi...
Since some of the older AWT classes are still used in modern Swing applications, it is normal to see the java.awt package in a few of the import statements. We have also defined a custom JPanel subclass, called MyPanel, which comprises the majority of the new code. The MyPanel class ...
Let’s see how to fill placeholders inside a template: XSLFTextShape titleShape = slide.getPlaceholder(0); XSLFTextShape contentShape = slide.getPlaceholder(1); Remember that each template has its placeholders, instances of theXSLFAutoShapesubclass, which could differ in number from one template...
Thread Subclass The first way to specify what code a thread is to run, is to create a subclass of Thread and override therun()method. Therun()method is what is executed by the thread after you callstart(). Here is an example of creating a JavaThreadsubclass: ...
Our strategy will be to use a special Lucene index, and query it using fuzzy queries to get a candidate list. Then we are going to rank the candidates with a Python script (that can easily be transformed in a Solr spell checker subclass if we get better results). ...
For our custom example, we’ll create a toy appender namedMapAppender. This appender will insert all logging events into aConcurrentHashMap, with the timestamp for the key. To begin, we’ll subclassAppenderBaseand useILoggingEventas the generic type: ...
A subclass "inherits" and has access to all of the public functions of its base classes just as if these functions appeared in the subclass. Alternatively, a subclass can override some or all of its inherited functions merely by defining a new function with the same form (overriding or ...