Convert Repository to Maven Multi-Module

Convert Repository to Maven Multi-Module | Generated by AI

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To convert your algorithm-solutions repository into a multi-module Java project managed by Maven, you’ll need a parent pom.xml in the root directory and individual pom.xml files for each submodule (nowcoder and uva). The parent pom.xml will define common configurations and manage the submodules, while each submodule’s pom.xml will handle its specific settings.

Below, I’ll provide the pom.xml files for the parent project and the two submodules. I’ll assume:

The project uses Java 17 (a common version for modern projects; adjust if needed).
The nowcoder and uva directories contain Java source files in a standard Maven structure (src/main/java).
No external dependencies are required for now, but the structure allows for easy addition.
Each submodule will be packaged as a JAR (since these are likely standalone algorithm solutions).

Directory Structure

After setting up, your directory structure should look like this:

algorithm-solutions/
├── pom.xml
├── nowcoder/
│   ├── pom.xml
│   └── src/
│       └── main/
│           └── java/
│               └── (your Java files, e.g., Main.java, nc140, etc.)
├── uva/
│   ├── pom.xml
│   └── src/
│       └── main/
│           └── java/
│               └── (your Java files, e.g., 100.java, 10000.java, etc.)
└── README.md

Parent `pom.xml`

This file goes in the root directory (algorithm-solutions/pom.xml). It defines the parent project, lists the submodules, and sets common configurations like Java version and compiler settings.

<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.algorithm.solutions</groupId>
    <artifactId>algorithm-solutions</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>pom</packaging>

    <name>Algorithm Solutions Parent</name>
    <description>Parent project for algorithm solutions</description>

    <modules>
        <module>nowcoder</module>
        <module>uva</module>
    </modules>

    <properties>
        <maven.compiler.source>17</maven.compiler.source>
        <maven.compiler.target>17</maven.compiler.target>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.13.0</version>
                <configuration>
                    <source>${maven.compiler.source}</source>
                    <target>${maven.compiler.target}</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

Nowcoder Submodule `pom.xml`

This file goes in the nowcoder directory (nowcoder/pom.xml). It inherits from the parent and specifies its own artifact details.

<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>com.algorithm.solutions</groupId>
        <artifactId>algorithm-solutions</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <artifactId>nowcoder</artifactId>
    <name>Nowcoder Solutions</name>
    <description>Solutions for Nowcoder algorithm problems</description>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>3.4.2</version>
                <configuration>
                    <archive>
                        <manifest>
                            <mainClass>Main</mainClass>
                        </manifest>
                    </archive>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

UVA Submodule `pom.xml`

This file goes in the uva directory (uva/pom.xml). It also inherits from the parent and specifies its own artifact details. Since UVA solutions typically don’t have a single Main class (each problem might be a standalone program), I won’t specify a main class here, but you can add one if needed.

<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>com.algorithm.solutions</groupId>
        <artifactId>algorithm-solutions</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <artifactId>uva</artifactId>
    <name>UVA Solutions</name>
    <description>Solutions for UVA algorithm problems</description>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>3.4.2</version>
            </plugin>
        </plugins>
    </build>
</project>

Steps to Set Up

Create Maven Directory Structure:
- Move your Java files in nowcoder to nowcoder/src/main/java/.
- Move your Java files in uva to uva/src/main/java/.
- For example, nowcoder/Main.java should be in nowcoder/src/main/java/Main.java.
Place the pom.xml Files:
- Put the parent pom.xml in the algorithm-solutions root directory.
- Put the nowcoder/pom.xml in the nowcoder directory.
- Put the uva/pom.xml in the uva directory.
Build the Project:
- Navigate to the algorithm-solutions root directory in a terminal.
- Run mvn clean install to build both submodules.
Run a Specific Program:
- For nowcoder, if Main.java is the entry point, you can run it with:
```
mvn -pl nowcoder exec:java -Dexec.mainClass="Main"
```
- For UVA solutions, since each file might be a standalone program, you can run a specific class (e.g., 100.java) with:
```
mvn -pl uva exec:java -Dexec.mainClass="100"
```

Notes

Java Version: I used Java 17. If you need a different version, update the <maven.compiler.source> and <maven.compiler.target> properties in the parent pom.xml.
Dependencies: If your solutions require libraries (e.g., for input/output utilities), add them to the submodule’s pom.xml under a <dependencies> section.
File Naming: Ensure your Java files match the class names (e.g., 100.java should contain public class 100).
Other Directories: Your repo includes codeforces, hacker_rank, etc. If you want to include these as submodules, add <module>codeforces</module> (etc.) to the parent pom.xml and create corresponding pom.xml files in those directories, similar to nowcoder and uva.

Let me know if you need additional submodules or specific configurations!

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