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Hello Dev Containers with Java

This project configures for Java development environment on Dev Containers.

image

Description

Demo

Features

  • Java 21
  • Gradle
  • Kotlin
  • Ki

Requirement

My environment:

  • WSL2 on Windows 11

Usage

0. Notice

You can choose OpenJDK or Microsoft Build of OpenJDK on devcontainer.json

// "dockerComposeFile": "compose.yaml",
// "dockerComposeFile": "compose.open.yaml",
  • compose.yaml: OpenJDK
  • compose.open.yaml : Microsoft Build of OpenJDK

1. Open / Rebuild Dev Container

Ctrl + p

Select the following option:

> Dev Containers: Rebuild and Reopen in Container

2. Open terminal view

Ctrl + p

Select the following option:

> Terminal: Create New Terminal

3. Create Java Project with Gradle

Execute the following commands to create and move project directories.

vscode ➜ /workspace $ mkdir sample
vscode ➜ /workspace $ cd sample/
vscode ➜ /workspace/sample $ gradle init

Default choinces are fine. In the following case, I selected application type project. Otherwise, source directories are note created by Gradle.

Select type of project to generate:
  1: basic
  2: application
  3: library
  4: Gradle plugin
Enter selection (default: basic) [1..4] 2

Select implementation language:
  1: C++
  2: Groovy
  3: Java
  4: Kotlin
  5: Scala
  6: Swift
Enter selection (default: Java) [1..6] 

Generate multiple subprojects for application? (default: no) [yes, no] 
Select build script DSL:
  1: Kotlin
  2: Groovy
Enter selection (default: Kotlin) [1..2] 

Select test framework:
  1: JUnit 4
  2: TestNG
  3: Spock
  4: JUnit Jupiter
Enter selection (default: JUnit Jupiter) [1..4]

Project name (default: sample): 
Enter target version of Java (min. 7) (default: 21): 
Generate build using new APIs and behavior (some features may change in the next minor release)? (default: no) [yes, no] 
vscode ➜ /workspace/sample $ tree app
app
├── build.gradle.kts
└── src
    ├── main
    │   ├── java
    │   │   └── org
    │   │       └── example
    │   │           └── App.java
    │   └── resources
    └── test
        ├── java
        │   └── org
        │       └── example
        │           └── AppTest.java
        └── resources

4. Create .gitignore file

curl -L http://www.gitignore.io/api/java,kotlin,gradle,maven,macos,linux,visualstudiocode --output gitignore

Installation

References

Licence

Released under the MIT license

Author