IntelliJ IDEA

- Pulkit Pushkarna

Agenda

Running IntelliJ Idea for the First time
Working with Gradle in Intellij Idea
Code Analysis
Code Completion
Editing and Working with code
Database Tool
Navigating Project
Refactoring
Tools
Version Control
Integrating database
Porting Core Platform to IntelliJ Idea

Getting Started

Create new Java project and Set the SDK

Select the location and name of your project

Open different windows to see the different aspects of the project

Project window can be used to see the file structure and the jars of your project

Change and searching prefrences

Changing code Style

Project Structure

Running the code with Arguments

Working with a gradle project

Enter the details of the gradle project

Use auto imports and local gradle distribution

For gradle local gradle choose the gradle under Cloudwords/tools folder

You can click on apply suggestions or hit the refresh button on gradle window to get the required dependencies

Dependencies introduces will be reflected in project and Gradle window
Tasks can be triggered from gradle window

Importing existing gradle project in IntelliJ Idea

Select the build.gradle file to import the existing project

Intention Actions

Options which are available in order to solve an error.
alt+enter will display a box inside window to display the intention options
Duplicate code can be safe deleted with the of Intention Actions

Inspect code with Editor Settings

alt+ shift+i : Helps us to find out what can be improved in the code

Command + n can be used for code generation

Code readability

Vertical arrows are provided with class, if statement, loop etc to get the high level view of the code
It highlights pair of brackets
Multiple statement can be moved forward using tab and shift + tab for moving backwards
In the preferences set zoom option for changing font size after that code can be zoom in and out with command + mouse wheel

Manipulation line

Start new line after current (shift + enter)
Start new line before current (alt + command + enter)
Move one or more lines up and down (alt + shift +arrowkeys)
String in java will be preserved in multiple line using + operator

Maximizing editor space

Double click on the editor tab
For other windows we can enable floating mode

Format code : command + alt + L

Copy : command + c

Paste : command +v

clipboard :command + shift + v

Search class by name : command + o

Search symbol : alt + command + o

Traverse to symbol : command click

Go to line : command + g

Traverse back : command + [

Search File name : shift + command + o

Search actions and options : command + shift + a

Find in path : command + shift +f

Quick documentation

View hierarchy of the class : ctrl + h

Search for symbols everywhere : double shift

Method class and variable names can also be refactored

Extract Method : alt + command + m

Extract parameter : alt + command + p

show methods in a class : command + fn + f12

Database integration

Go to View -> Tool windows -> database
In database window click on plus sign choose your database type fill the details and apply changes
In the mysql window you can the sql commands

Setting up cloudwords application Intellij Idea

Go to File-> new-> Project from Existing Sources

Once you click on Project from existing source

It will open a select box browse to core-platform folder and select build.gradle and click open

After clicking open in the previous step select gradle wrapper. If gradle wrapper option is not available the "Use local gradle distribution"

and in gradle home give the path of tools/gradle-2.3 folder under cloudwords directory

Once the gradle project is imported and all the dependencies are resolved go to edit Configuration. It will Run/Debug configuration Window

Click on the + sign in Run/Debug Configurations then go to Tomcat Server and then click on local

You will a config window as show below

Refer to image at previous page for the instruction below:

Give the name to the Tomcat Server
In the sub tab server fill the information regarding your web application
- Choose the Application Server Directory
  - /core-platform/app/dist/dev/tomcat-6.0.41 for app
  - /core-platform/api/dist/dev/tomcat-6.0.41 for API

Copy the VM_ARGUMENTS values from app -server(dev).launch for app and api -server(dev).launch for api in VM options
Check the Deploy application configured in Tomcat instance option

In the deployment tab click on + sign and select the artifact
In the Select artifacts to Deploy select the exploded war and click ok
Select the checkbox Show this page and run the app

Debug the application

Click on the debug icon in upper right corner and click debug button to run application in debug mode

Debugging shortcuts

Evaluate expression (fn + alt + f8)
Step Over (fn + f8)
Step Into (fn + f7)
Step Out (fn + shift + f8 )
Resume Program (alt + command + R)

Exporting eclipse style format to IntelliJ Idea

Go to preference -> java -> code style->formatter
click on Export All and save the xml file

go to preference -> editor -> Code Style -> Java
click on setting icon -> import scheme -> Eclipse XML Profile
select the file exported from eclipse