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Showing posts from October, 2017

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Tutorial on Eclipse Java Editor Shortcuts

on October 29, 2017

+ Tutorial on Eclipse Java Editor Shortcuts

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Tutorial on launching Swing GUI always in a dedicated Thread

on October 21, 2017

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Tutorial on File Manager/File Explorer with Swing JTree Component

on October 06, 2017

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Nagasharath Kopalle

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Every Java programmer must read books
Evolution of Java Programming Language
Internals of JVM
LinkedList and ArrayList
Send SMSs with Java
Tutorial and CHEAT SHEET for java List interface
Tutorial on Agile Methodology with SCRUM Framework Basics
Tutorial on Apache Commons Exec API for executing exe files from java program
Tutorial on API for executing exe files from java program.

Tutorial on Atomicity with Java Programming Language
Tutorial on coding and best practices
Tutorial on controlling an executable from Java program
Tutorial on DesignGridLayout: Simple
Tutorial on Eclipse Java Editor Shortcuts
Tutorial on Exception handling and java keywords
Tutorial on File IO operations with Java programming language
Tutorial on File Manager/File Explorer with Swing JTree Component
Tutorial on Java - Swing custom components - Rounded JButton
Tutorial on Java and OOPS concepts
Tutorial on Java API support for Exception Handling
Tutorial on Java classes and objects
Tutorial on Java desktop GUI
Tutorial on java GridLayout: fill the form with gridlayout
Tutorial on Java IDE for Learners: BlueJ
Tutorial on Java Immutable objects and mutable objects with an example
Tutorial on java JColorComboBox: JComboBox as Color Chooser
Tutorial on Java Multi threaded programming basics
Tutorial on Java Multi threaded programming basics with Reentrant lock
Tutorial on Java NullPointerException
Tutorial on Java programming language and IDEs
Tutorial on Java Swing JFrame usage demo
Tutorial on Java Swing JLabel demo with example
Tutorial on JavaFX: arranging components on GridPane
Tutorial on JForm: Fill the form with style
Tutorial on launching Swing GUI always in a dedicated Thread
Tutorial on Simple program which demonstrates Swing/AWT Grid layout
Tutorial on swapping two numbers
Tutorial on Swing Components
Tutorial on Swing Containers and Controls
Tutorial on WMI - Windows Management Instrumentation
yet powerful Layoutmanager for arranging swing components

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Evolution of Java Programming Language

Evolution of Java:&#x0016 First of all, The Java programming language and it's tools that we currenly using is not what actually expected. This language started as a project to give solutions for embedded devices, mobile phones and other portable peripherals. Initially, the Java was called Oak. Why it is Oak first..? and Why it transformed to Java...? The team of five technocrats including Dr. James Gosling and also known as Dr. Java, together working on a project, which expected to give solutions on embedded devices, portable smart devices and TV Set top Boxes etc. at Sun Micro Systems. In the process of achieving this solution, at their breaktime, team used to relax with a coffee by having a glimpse on a scenery of Oak tree next to their facility. Once the project has come to conclusion and in the process of giving a title to it, they noticed the Oak trees [Always observing them in their break time], they named this programming language as Oak. Oak Logo Why it ...

Tutorial on DesignGridLayout: Simple, yet powerful Layoutmanager for arranging swing components

Swing toolkit comes with few standard Layout Managers where none of them serves the need of arranging components in a way that usually developers require. some of them does, but it takes lot of coding time to achieve it. GridBagLayout is the most flexible layout manager available in swing toolkit but their are so many variables that developer has to look after. DesignGridLayout can be a useful LayoutManager to arrange components in less time with very small snippet of code and can still get proper alignment. Layouting with DesignGridLayout is as easy as coding with various GUI Builder tools available in varoius IDEs. Simple program which demonstrates DesignGridLayout: import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JSeparator; import javax.swing.JTextField; import javax.swing.SwingUtilities; import javax.swing.UIManager; import javax.swing.UnsupportedLookAndFeelException; import net.java.dev.designgr...

Tutorial on java JColorComboBox: JComboBox as Color Chooser

　 Swing toolkit provides a component called JColorChooser to choose colors. It allows users to select color from multiple color combinations. Some times our application may need simple component with an option to select only basic colors/ less number of color options unlike sepearate dialog with too may color options[JColorChooser]. This JColorComboBox may serve the need. I wanted my color chooser to behave like JComboBox. The popup shows all 12 colors and their names, among all of them one color can be choosen. see the below image. I created two classes 1. JColorComboBox 2. ColorRenderer JColorComboBox extends the JComboBox and ColorRenderer extends JLabel and implements ListCellRenderer. import java.awt.Color; import java.awt.Component; import java.awt.Font; import java.util.Enumeration; import java.util.Hashtable; import javax.swing.*; /** * * @author sharath */ public class JCol...

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