- How To Do Hello World In Eclipse
- How To Do Hello World In Python
- How To Do Hello World In F# Visual Studio For Mac
About this tutorial:
Video duration: 19:14
“Hello World” project done in Visual Studio 2017 RC targeting Excel 2013 using Visual Studio Tools for Office(VSTO).
After the program is completed the rest of video gives some help when working with VSTO. How to clean up Excel ribbon using VSTO Power Tools for example.
Advanced Uninstaller PRO will automatically remove Hello World 0.2. After uninstalling Hello World 0.2, Advanced Uninstaller PRO will ask you to run a cleanup. Click Next to proceed with the cleanup. All the items that belong Hello World 0.2 which have been left behind will be found and you will be asked if you want to delete them. Html Tutorial Hello World By mkyong| May 19, 2008| Updated: August 30, 2012| Viewed: 232,504| +1,754 pv/w In this tutorial, you will learn how to create a simple hello world page with HTML. A simple C++ program to display 'Hello, World!' On the screen. Since, it's a very simple program, it is often used to illustrate the syntax of a programming language. We’re the digital collaboration team for the Government of Canada. We’re also called the GCTools team. You probably haven’t heard of us, though. Jan 09, 2018 Visual Studio Mac - Console Application - Hello world How to develop c# application on Mac. Shapeoko 3 - Hello World It’s been a long tradition in the Shapeoko community to run a ‘hello world’ to test your machine’s basic functionality. To run this same pattern on your machine, follow the instructions below. Printf(“Hello World n”); The printf is used for printing things on the screen, in this case the words: Hello World. As you can see the data that is to be printed is put inside round brackets. The words Hello World are inside inverted ommas, because they are what is called a string.
This is my first youtube video so when I say app I mean addin. And VSTO is available in community editions as a download after Visual Studio Community is installed, missed that. Also, VSTO is available in community editions.
Thanks for watching!
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HowToDoInJavaBy Sajal Chakraborty | Filed Under: Java LibrariesDocker is a developer tool to package applications along with their runtime environment, so anybody can deploy and run them in any other machine without facing runtime environment conflicts. It is very similar to virtual machine concept (virtualization), where you can get a VM image and run it on any supporting hardware. All internal programs in VM will function as they were packaged originally.
Difference between a VM and a docker image is that docker image does not package whole virtual operating system. It uses the OS resources just like other process in developer’s machine, only application and it’s runtime specific dependencies are packaged (Containerization).
Docker allows users to publish docker images and consume those published by others in repositories like Docker Hub.
In this tutorial, learn to install Docker container in windows, to create docker image and to deploy Docker image (which as one simple spring boot based microservice) in developer machine.
Docker Installation
To install docker on Windows 7 machine, follow the bellow steps:
Choose the appropriate Docker installer for your System
Before starting with the installation process we need to understand the exact Docker version that is suitable for the Windows that you are using. Docker has provided two versions of Windows distribution as bellow
- For windows 10 we need to follow this link https://docs.docker.com/docker-for-windows/
- For Windows 7, 8 and older versions we need to use Docker Toolbox and here is the official link for that https://docs.docker.com/toolbox/overview/
We will follow the Docker tool box installation steps for this article.
Download Docker installer
We need to first download the Docker toolbox distribution from https://download.docker.com/win/stable/DockerToolbox.exe and we will follow the installation steps in local Workstation.
Enable Hardware Virtualization Technology
In order to Docker toolbox works properly we need to make sure your Windows system supports Hardware Virtualization Technology and that virtualization is enabled. Docker has provided detailed step on this here: https://docs.docker.com/toolbox/toolbox_install_windows/#step-1-check-your-version. If we don’t have this enabled then we need to go to BIOS option and enable Hardware Virtualization. The BIOS is bit different for different models of Computer, so please follow official guideline for enabling that.
Run Docker installer
Once we have the Installer downloaded and we have enabled the Hardware Virtualization, we can start the installer. It’s just like a simple another windows based installation process guided by a installation wizard.
Verify your installation
To verify docker installation, open Docker Quickstart Terminal shortcut from either Desktop or Start menu. Verify that Docker prompt is coming and then need to test few basic commands. Docker prompt and sample docker command will look like below.
Note Down the Docker IP
We need to now note down the Docker IP assigned to this Container. We will access this IP to access the Applications installed inside Docker. To know the IP from the command prompt use command docker-machine ip. Here is the sample output of the command. Please note that this IP will be different for different M/Cs.
Create docker Image
We will first create a spring boot based REST API, add docker specific configuration and then we will create docker image.
Create Spring REST Project
Develop one simple hello world Microservice for testing. We have used spring boot and Maven and Eclipse as IDE. Add a REST endpoints so that once this application is deployed in to Docker, we can test this by accessing the rest endpoint.
Update resources/application.properties with server port information.
Now test this microservice by running the project as spring boot application.
Add Docker Configurations
Now create a file named Dockerfile in the root directory and add the below lines as Docker configurations.
This is used by Docker while creating the image. It is basically declaring the Java runtime information and target distributions. For more details, follow docker builder reference.
Add Maven Docker Plugins
Add two maven plugins in the pom.xml file so that we can use the Docker related maven commands while creating the instance. Those plugins are dockerfile-maven-plugin and maven-dependency-plugin.
We have used the minimal configurations required to build the project.
Create Docker Image
Now use maven command mvn clean install dockerfile:build to create docker image.
How To Do Hello World In Eclipse
Please make sure your local application is not running while you are building the image, in that case you might get maven build failure, as in clean step it will not be able to delete the target folder as the jar is being used by java process.Here is the last few lines of maven output log where it is building the image.
Deploy and Run Docker Image
So we have created the Docker Image (i.e. hello-docker-0.0.1-SNAPSHOT-docker-info.jar). We also have a installed docker container running in our local machine.
Now, to run the docker image inside installed docker container, we will use below command.
Here the option -p 8080:9080 is important. It says that expose port 8080 for internal port 9080. Remember our application is running in port 9080 inside docker image and we will access that in port 8080 from outside Docker container.
Now access the application with URL http://192.168.99.100:8080/hello/sajal. Notice that the browser output is same as output of standalone REST API on localhost.
Stop Docker Container
We can list down all docker containers by command docker ps in the terminal and we can use command docker stop <name>
Summary
How To Do Hello World In Python
We learned to install Docker in Windows OS. We also learned to create a spring boot project with one REST endpoint and build Docker image for it. Then we learned to run the docker image inside docker container and tested REST endpoint inside docker image.
Docker is very cool tool to solve very old developer problem that “it works in my local machine”. Now if something works in your machine, you can surely run that on other machine as well.
Download Source CodeHappy Learning!!!