04-03-25
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                           Java  application development using Eclipse 
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Q)What is Eclipse?
=>Eclipse is one of the widely used IDEs in the industry for Java application development.
=>IDE(Integrated Development Environment) is tool(software) used to develop,test,debug,deploy and run Java applications.
=>Intellij, JDeveloper, JBuilder, NetBeans are some other IDEs for Java project development.

Q)What is workspace in the context of Eclipse?
  =>A master folder(directory) in which, Java applications developed using Eclipse
  are stored.
  =>We can create any number of workspaces.
  =>Every Eclipse session is associated with one workspace.

Q)What is a project in the context of Eclipse?
=>Any Java application that is developed using Eclipse is known as a project.
=>Eclipse treats every Java application as as a project.

Q)What are the main components of Eclipse Workbench?
=>When Eclipse is launched(started), the first window(main window) is known
as Eclipse Workbench.  It consists of so many plugins.

           1)package explorer
	   2)Editor
	   3)Console

Q)Develop a Java project using Eclipse that prints Hello World on the console.

Step 1:- create a project

Step 2:- create a package

Step 3:- create a Java class (with main method)

Step 4:- Write required code in main method
                   (syso   Ctrl+ space bar)

Step 5:- Run the application.
                (right click on the editor.  Run As=>Java application)

                  Some most frequently used Shortcut keys
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1)Ctrl+s =>to save the file
2)syso+ctrl+space bar=> to get System.out.println()
3)Ctrl+d  =>to delete a line
4)Ctrl+/ =>to comment and to uncomment
5)Ctrl+w =>To close a file
6)Ctrl+Shft+w=>to close all the files
7)Ctrl+space bar =>To get IDE intelligence
8)Ctrl+Shft+o =>Organize imports
9)Ctrl+Shft+f =>formatting the code
10)Ctrl+m=>minimize/maxmize