Add interactive console menu system for data structure demonstrations

.github/workflows/codeql.yaml

@@ -0,0 +1,14 @@
+name: CodeQL analysis
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  schedule:
+    - cron: '0 3 * * 0'
+
+jobs:
+  call-codeQL-analysis:
+    name: CodeQL analysis
+    uses: actions/reusable-workflows/.github/workflows/codeql-analysis.yml@main

.github/workflows/label_pr.yaml

@@ -0,0 +1,22 @@
+# This workflow will triage pull requests and apply a label based on the
+# paths that are modified in the pull request.
+#
+# To use this workflow, you will need to set up a .github/labeler.yml
+# file with configuration.  For more information, see:
+# https://github.com/actions/labeler
+
+name: Pull Request Labeler
+on: [pull_request_target]
+
+jobs:
+  label:
+
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write
+
+    steps:
+    - uses: actions/labeler@v5
+      with:
+        repo-token: "${{ secrets.GITHUB_TOKEN }}"

.github/workflows/maven.yaml

@@ -0,0 +1,36 @@
+# This workflow will build a Java project with Maven, and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-maven
+
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+name: Java CI with Maven
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up JDK 23
+      uses: actions/setup-java@v4
+      with:
+        java-version: '23'
+        distribution: 'temurin'
+        cache: maven
+    - name: Build with Maven
+      run: mvn -B package --file pom.xml
+
+    # Optional: Uploads the full dependency graph to GitHub to improve the quality of Dependabot alerts this repository can receive
+    - name: Update dependency graph
+      if: github.event_name == 'push'
+      uses: advanced-security/maven-dependency-submission-action@571e99aab1055c2e71a1e2309b9691de18d6b7d6

.github/workflows/pmd.yaml

@@ -0,0 +1,41 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+name: pmd
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+permissions:
+  contents: read
+
+jobs:
+  pmd-code-scan:
+    permissions:
+      contents: read # for actions/checkout to fetch code
+      security-events: write # for github/codeql-action/upload-sarif to upload SARIF results
+      actions: read # only required for a private repository by github/codeql-action/upload-sarif to get the Action run status
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up JDK 11
+        uses: actions/setup-java@v4
+        with:
+          java-version: '11'
+          distribution: 'temurin'
+      - name: Run PMD
+        id: pmd
+        uses: pmd/pmd-github-action@v2
+        with:
+          rulesets: 'rulesets/java/quickstart.xml'
+          sourcePath: 'src/main/java'
+          analyzeModifiedFilesOnly: false
+      - name: Upload SARIF file
+        uses: github/codeql-action/upload-sarif@v3
+        with:
+          sarif_file: pmd-report.sarif

.github/workflows/summarize_new_issue.yaml

@@ -0,0 +1,33 @@
+name: Summarize new issues
+
+on:
+  issues:
+    types: [opened]
+
+jobs:
+  summary:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      contents: read
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Run AI inference
+        id: inference
+        uses: actions/ai-inference@v1
+        with:
+          prompt: |
+            Summarize the following GitHub issue in one paragraph:
+            Title: ${{ github.event.issue.title }}
+            Body: ${{ github.event.issue.body }}
+
+      - name: Comment with AI summary
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ISSUE_NUMBER: ${{ github.event.issue.number }}
+          RESPONSE: ${{ steps.inference.outputs.response }}
+        run: |
+          gh issue comment "$ISSUE_NUMBER" --body "$RESPONSE"

CONTRIBUTING.md

@@ -8,7 +8,7 @@ Thank you for taking the time to contribute to this project! Here are a few guid
 
 2. **Clone the repository**: Clone your forked repository to your local machine using the following command:
     ```sh
-    git clone https://github.com/your-username/java-alda.git
+    git clone https://github.com/your-username/java-dsa.git
     ```
 
 3. **Create a branch**: Create a new branch for your work using the following command:

README.md

@@ -1,4 +1,4 @@
-# Java Algorithms and Data Structures
+# Java Data Structures and Algorithms
 
 This repository contains implementations of various algorithms and data structures in Java. It is intended as a resource for learning and reference.
 
@@ -94,11 +94,11 @@ Implementation and usage of graphs.
 
 1. Clone the repository:
     ```sh
-    git clone https://github.com/bcExpt1123/java-alda.git
+    git clone https://github.com/bcExpt1123/java-dsa.git
     ```
 2. Navigate to the project directory:
     ```sh
-    cd java-alda
+    cd java-dsa
     ```
 
 ## Usage
@@ -107,11 +107,21 @@ Run code:
 ```sh
   mvn clean compile exec:java
 ```
+
 Run test:
 ```sh
   mvn test
 ```
 
+Run Check style:
+```sh
+  mvn checkstyle:check
+```
+Or
+```sh
+  mvn checkstyle:checkstyle
+```
+
 ## Contributing
 
 Contributions are welcome! Please read the [contributing guidelines](CONTRIBUTING.md) for more details.

checkstyle.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0"?>
+<!DOCTYPE module PUBLIC
+        "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
+        "https://checkstyle.org/dtds/configuration_1_3.dtd">
+
+<module name="Checker">
+
+    <!-- Line length should be a direct child of Checker -->
+    <module name="LineLength">
+        <property name="max" value="120"/>
+    </module>
+
+    <module name="TreeWalker">
+        <module name="EmptyBlock"/>
+        <module name="LeftCurly"/>
+        <module name="RightCurly"/>
+        <module name="NeedBraces"/>
+        <module name="WhitespaceAfter"/>
+        <module name="WhitespaceAround"/>
+    </module>
+</module>

pom.xml

@@ -5,14 +5,14 @@
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>org.example</groupId>
-    <artifactId>algo-datastructure</artifactId>
+    <artifactId>java-dsa</artifactId>
     <version>1.0-SNAPSHOT</version>
 
     <properties>
         <maven.compiler.source>23</maven.compiler.source>
         <maven.compiler.target>23</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <exec.mainClass>org.alda.Main</exec.mainClass>
+        <exec.mainClass>org.dsa.Main</exec.mainClass>
     </properties>
     <dependencies>
         <dependency>
@@ -28,5 +28,27 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
-
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-checkstyle-plugin</artifactId>
+                <version>3.3.0</version>
+                <executions>
+                    <execution>
+                        <phase>verify</phase>
+                        <goals>
+                            <goal>check</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <configLocation>checkstyle.xml</configLocation>
+                    <encoding>UTF-8</encoding>
+                    <consoleOutput>true</consoleOutput>
+                    <failsOnError>true</failsOnError>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
 </project>