Polymorphism in Java
An example: Giving the output: JavaPolymorph SubJavaPolymorph
Archive of entries posted on November 2011
Java Threads: The Basics
Method 1: Write a class that implements the Runnable interface (i) Put the thread code in the run() method. (ii) Create a thread object by passing a Runnable object as an argument to the Thread constructor. The Thread object now has a Runnable object that implements the run() method. Like this: (new Thread(new MyThread())).start(); Simple …
Mathematical Expression Parsers in Java and C++
Basic Expression Parsing Click here for advanced expression parsing When writing your own calculator it is necessary to build a converter that can transform an input mathematical expression such as ( 1 + 8 ) – ( ( 3 * 4 ) / 2 ), into a format that is more suited for evaluation by …
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Reading Text Files into String Arrays in Java
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Java Collections: The Basics
One long section of code outlining how to use the Java Collections. As per the Java Strings post, this consists of one long code snippet outlining commonly used Java collections such as Hash Maps, Linked Lists etc. As this is ongoing, expect to see newer stuff added as time progresses.
Java Strings: The Basics
One long section of code outlining how to achieve some basic string handling objectives in Java. Currently trying to get to grips with this language after spending far too many years concentrating on C++. Each technique is demonstrated with a code snippet. As with a lot of my other stuff, any new stuff I find …
Getting Started with Java in NetBeans
1. Create a new project In the File menu, select New Project:
Getting Started with Java in Eclipse
1. Open Eclipse and create a new project Select File -> New -> Java Project. Give your project a name and change the default locxation of the folder location, if desired. Click the Finish button:
Implementing Dijkstra’s Algorithm using Sedgewick’s C++ Code
Introduction Dijkstra’s algorithm solves the shortest path problem for a graph with nonnegative edge weights, producing a shortest path tree. This algorithm is often used in routing and as a subroutine in other graph algorithms, the k-shortest paths algorithm, for example.
Priority Queues and Min Priority Queues in STL / C++
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