init project

.gitignore

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+out
+files
+caches
+target
+*.token
+target
+log
+logs
+.idea
+process
+pkg
+*.exe
+*.jar
+*.log

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<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>org.example</groupId>
+    <artifactId>StudentManagerS</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
+    </properties>
+
+    <dependencies>
+        <!-- https://mvnrepository.com/artifact/org.xerial/sqlite-jdbc -->
+        <dependency>
+            <groupId>org.xerial</groupId>
+            <artifactId>sqlite-jdbc</artifactId>
+            <version>3.36.0.3</version>
+        </dependency>
+
+    </dependencies>
+
+</project>

readme.md

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+# StudentManager-S
+
+嗯，正如你所见，这项目叫做StudentManager-S
+
+“-S”不是指“Super”，而是"Simple"  (￣﹏￣；)   (￣﹃￣)
+
+就一小作业而已
+
+

src/main/java/me/lensfrex/manager/Main.java

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+package me.lensfrex.manager;
+
+import me.lensfrex.manager.utils.IOUtil;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.nio.charset.StandardCharsets;
+
+public class Main {
+    private static final String welcomeMessage = IOUtil.inputStreamToString(Main.class.getResourceAsStream("/me.lensfrex.manager/welcomeMessage.txt"), StandardCharsets.UTF_8);
+
+    public static void main(String[] args) {
+        System.out.println(welcomeMessage);
+        new Main().run();
+    }
+
+    private void run() {
+        
+    }
+
+    private String getUserCommand() {
+        BufferedReader command = new BufferedReader(new InputStreamReader(System.in));
+        try {
+            return command.readLine();
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    private void parseCommand(String command) {
+        switch (command) {
+            case "1":
+            case "2":
+            case "3":
+            case "4":
+            case "5":
+            case "6":
+            case "7":
+            case "8":
+            case "9":
+                break;
+        }
+    }
+}

src/main/java/me/lensfrex/manager/utils/Console.java

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+package me.lensfrex.manager.utils;
+
+public class Console {
+
+}

src/main/java/me/lensfrex/manager/utils/IOUtil.java

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+package me.lensfrex.manager.utils;
+
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.nio.charset.Charset;
+
+/*
+ 这些Utils是我从我之前的项目里边搬过来的
+ https://github.com/lensferno/dogename/tree/main/Dogename/src/main/java/me/lensferno/dogename/utils
+ 写得很渣，别去看
+ */
+
+public class IOUtil {
+    public static String inputStreamToString(InputStream inputStream, Charset charSet) {
+        byte[] bytes = readDataFromInputStream(inputStream);
+        if (bytes != null) {
+            return new String(bytes, charSet);
+        } else {
+            return null;
+        }
+    }
+
+    public static byte[] readDataFromInputStream(InputStream inputStream) {
+        return readDataFromInputStream(inputStream, 5);// read every 5kb in default
+    }
+
+    public static byte[] readDataFromInputStream(InputStream inputStream, int byteAllocation) {
+        try {
+            ByteArrayOutputStream byteArrayInputStream = new ByteArrayOutputStream();
+            byte[] bytes = new byte[1024 * byteAllocation];
+
+            for (int length; (length = inputStream.read(bytes)) != -1; ) {
+                byteArrayInputStream.write(bytes, 0, length);
+            }
+
+            byteArrayInputStream.flush();
+
+            inputStream.close();
+            byteArrayInputStream.close();
+
+            return byteArrayInputStream.toByteArray();
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+}

src/main/resources/me.lensfrex.manager/welcomeMessage.txt

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+****************************************************************
+                 Welcome to StudentManager-S
+****************************************************************
+Do you want to:
+    1. Input record
+    2. Caculate total and average score of every course
+    3. Caculate total and average score of every student
+    4. Sort in decending order by total socre of every student
+    5. Sort in ascending order by number
+    6. Sort in ascending order by name
+    7. Search by number
+    8. Search by name
+    9. Statistic analysis for every course
+    10. List reocrd
+    0. Exit
+****************************************************************
+    Please enter your choice: