The Java API library consists of a vast set of packages. Classes and interfaces are bundled by the function and purpose they serve. By default, every Java application or applet has access to the core package in the API, the java.lang package. Types of Java packages are as follows: Predefi...
This article sees the programming concept of a Java program and its application in the BlueJ platform. The code is used to calculate the interest rate from the principal. It returns the simple interest, compound interest, and exits if the user wishes to. Also, we see how JNDI is used in...
Our design borrows from similar concepts found in Java, C++, ML, or Ada but is strictly more powerful and we hope also more practical. In our concept, packages serve three main purposes: 1. Decomposing the global namespace into disjoint subspaces. 2. Distributing the program files into ...
If you use multitier deployment to deploy packages to remote locations, the concept of locations is crucial. In JD Edwards EnterpriseOne, a location is essentially a user-defined group of machines, databases, and environments. In some cases, the location is an actual physical location that is ...
Im stuck getting the code right for object typcasting. I believe i understand the concept, but im not sure i have everything yet. Help would be appreciated. Chris com/example/BlogPost.java packagecom.example;importjava.util.Date;publicclassBlogPost{privateStringmAuthor;privateStringmTitle;private...
An object is a software bundle of related state and behavior. This section explains how state and behavior are represented within an object, introduces the concept of data encapsulation, and explains the benefits of designing your software in this manner. ...
import java.awt.*; import java.awt.color.*; Name Ambiguities If a member in one package shares its name with a member in another package and both packages are imported, you must refer to each member by its qualified name. For example, thegraphicspackage defined a class namedRectangle. The...
the concept of packages with the unrelated concept of class inheritance. Two classes that reside in the same package have a namespace in common, but are not necessarily related to each other in any other way. Likewise, a nested package may have no semantic relationship to its parent package....
This article explored packages, a concept that saves you from reinventing the wheel. Packages help you organize your classes and interfaces, which you can then import into your programs to save you from rewriting code. For further organizational purposes, you can move these directories around on ...
Package uses the concept of namespace to avoid collision of variable names and procedure names. Check out more in our next 'namespace' tutorial.Creating PackageA package can be created with the help of minimum two files. One file contains the package code. Other file contains the index ...