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Option 1

import java.util.Date;

import my.domain.FakeOrder;
import my.domain.Price;
import my.domain.OrderWith;
import my.domain.ItemsTotal;
import my.domain.MyTypicalJavaService;

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Run Powershell with Administrator rights

Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux
Set-ExecutionPolicy RemoteSigned -Scope CurrentUser -Force
Invoke-Expression (New-Object System.Net.WebClient).DownloadString('https://get.scoop.sh')
scoop install git-with-openssh
scoop bucket add extras
scoop install sliksvn
scoop install docker
scoop install docker-compose

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1. How to update the copyright for files in ruby project? https://github.com/barrydrink/LicenceInjector/blob/master/bin/licence_injector https://gist.github.com/lbvf50mobile/4296b1a66872620deaf2c30f94e09ccb

2. Bundler: why do we need it? https://bundler.io/ Install all of the required gems from your specified sources:

$ bundle install
$ git add Gemfile Gemfile.lock

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1. Download from https://www.eclipse.org/mat/downloads.php the OSX distributive http://www.eclipse.org/downloads/download.php?file=/mat/1.8.1/rcp/MemoryAnalyzer-1.8.1.20180910-macosx.cocoa.x86_64.zip
2. Unzip the archive to folder ($OSX_MAT_HOME)
3. Open the root folder with binary $OSX_MAT_HOME/mat.app/Contents/MacOS

   12:56:03 MacOS $ ls
   MemoryAnalyzer		MemoryAnalyzer.ini	workspace

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Install the JMC on OSX 10.14.2, Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode)

1. Download the swt cocoa jar from here.
2. Go to JDKs jmc path (You can find this path by right-clicking on jmc icon in the dock -> Options -> Show in Finder, Then right click on App -> Show Package Contents). For example:

   cd /Library/Java/JavaVirtualMachines/jdk<version>.jdk/Contents/Home/lib/missioncontrol
   # Back up exisiting jar using 
   sudo mv plugins/org.eclipse.swt.cocoa.macosx.x86_64_3.103.1.v20140903-1947.jar ../
   # Copy downloaded zip's swt.jar using 
   sudo cp ~/Downloads/swt.jar plugins/org.eclipse.swt.cocoa.macosx.x86_64_3.103.1.v20140903-1947.jar

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About PrintCompilation

This note tries to document the output of PrintCompilation flag in HotSpot VM. It was originally intended to be a reply to a blog post on PrintCompilation from Stephen Colebourne. It's kind of grown too big to fit as a reply, so I'm putting it here.

Written by: Kris Mok [email protected]

Most of the contents in this note are based on my reading of HotSpot source code from OpenJDK and experimenting with the VM flags; otheres come from HotSpot mailing lists and other reading materials listed in the "References" section.

This

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#
# Docker
#

docker start <container_name>               # start particular container
docker start -i <container_name>            # start particular container in interactive mode
docker stop <container_name>                # stop particular container
docker ps                                   # display all running containers
docker ps -a # display all existing containers (stopped)

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Introduction

• C-a == Ctrl-a
• M-a == Alt-a

General

:q        close
:w        write/saves
:wa[!]    write/save all windows [force]
:wq       write/save and close

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  ### Quick Start

  git clone <url>                 # Clone directory
  git checkout -b <new-branch>    # Create new local branch
  git push -u origin <new-branch> # Sync local branch with remote
  git checkout <branch>           # Checkout branch
  git push origin <branch>        # Push branch to remote

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PSQL

psql -U postgres

If run with -E flag, it will describe the underlaying queries of the \ commands (cool for learning!).

Most \d commands support additional param of __schema__.name__ and accept wildcards like *.*

Command	Description