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Commit 8c27098a authored by Deokhyun Lee's avatar Deokhyun Lee
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      .DS_Store 0 → 100644
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      File added
      .idea/.gitignore 0 → 100644
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      # Default ignored files
      /shelf/
      /workspace.xml
      # Datasource local storage ignored files
      /dataSources/
      /dataSources.local.xml
      # Editor-based HTTP Client requests
      /httpRequests/
      .idea/description.html 0 → 100644
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      <html>Simple <b>Java</b> application that includes a class with <code>main()</code> method</html>
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      .idea/encodings.xml 0 → 100644
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      <?xml version="1.0" encoding="UTF-8"?>
      <project version="4">
      <component name="Encoding">
      <file url="PROJECT" charset="UTF-8" />
      </component>
      </project>
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      .idea/misc.xml 0 → 100644
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      <?xml version="1.0" encoding="UTF-8"?>
      <project version="4">
      <component name="EntryPointsManager">
      <entry_points version="2.0" />
      </component>
      <component name="ProjectKey">
      <option name="state" value="project://e2804f05-5315-4fc6-a121-c522a6c26470" />
      </component>
      <component name="ProjectRootManager" version="2" languageLevel="JDK_15" default="true" project-jdk-name="15" project-jdk-type="JavaSDK">
      <output url="file://$PROJECT_DIR$/out" />
      </component>
      </project>
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      .idea/modules.xml 0 → 100644
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      <?xml version="1.0" encoding="UTF-8"?>
      <project version="4">
      <component name="ProjectModuleManager">
      <modules>
      <module fileurl="file://$PROJECT_DIR$/JavaFileManagement.iml" filepath="$PROJECT_DIR$/JavaFileManagement.iml" />
      </modules>
      </component>
      </project>
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      .idea/project-template.xml 0 → 100644
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      <template>
      <input-field default="com.company">IJ_BASE_PACKAGE</input-field>
      </template>
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      .idea/runConfigurations.xml 0 → 100644
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      <?xml version="1.0" encoding="UTF-8"?>
      <project version="4">
      <component name="RunConfigurationProducerService">
      <option name="ignoredProducers">
      <set>
      <option value="com.android.tools.idea.compose.preview.runconfiguration.ComposePreviewRunConfigurationProducer" />
      </set>
      </option>
      </component>
      </project>
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      JavaFileManagement.iml 0 → 100644
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      <?xml version="1.0" encoding="UTF-8"?>
      <module type="JAVA_MODULE" version="4">
      <component name="NewModuleRootManager" inherit-compiler-output="true">
      <exclude-output />
      <content url="file://$MODULE_DIR$">
      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
      </content>
      <orderEntry type="inheritedJdk" />
      <orderEntry type="sourceFolder" forTests="false" />
      </component>
      </module>
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      src/Main.java 0 → 100644
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      import com.hsj.util.Util;
      public class Main {
      public static void main(String[] args) {
      // write your code here
      String filePath = "/Users/ideoghyeon/Desktop/이름.txt";
      Util.smartReadLineFile(filePath, "\n", ",");
      }
      }
      src/com/hsj/util/Util.java 0 → 100644
      View file @ 8c27098a
      package com.hsj.util;
      import java.io.BufferedReader;
      import java.io.FileReader;
      import java.io.FileWriter;
      import java.io.IOException;
      import java.io.PrintWriter;
      import java.text.SimpleDateFormat;
      import java.util.ArrayList;
      import java.util.Date;
      public class Util {
      // 오늘 날짜를 가져 오는 메소드(yyyy-MM-dd)
      public static String getCurrentDate(String fmt) {
      SimpleDateFormat sdf = new SimpleDateFormat(fmt);
      return sdf.format(new Date());
      }
      // 파일 읽어서 화면에 출력(파일 내용을 여기 메소드 밖으로 보내고 싶다)
      public static String readLineFile(String filePath) {
      BufferedReader br = null;
      String retLine = "";
      // StringBuffer sb = new StringBuffer();
      try {
      br = new BufferedReader(new FileReader(filePath));
      while (true) {
      String line = br.readLine();
      if (line == null)
      break;
      retLine += line + "\n"; // 문자열을 리턴
      // sb.append(line + "\n");
      // System.out.println(line); // 화면에 출력
      }
      } catch (IOException e) {
      e.printStackTrace();
      } finally {
      try {
      br.close();
      } catch (IOException e) {
      e.printStackTrace();
      }
      }
      return retLine; // sb.toString()
      // return sb.toString();
      }
      /**
      * 간편하게 split을 이용할 수 있다.
      *
      */
      public static void smartReadLineFile(String filePath, String separator, String separator2) {
      BufferedReader br = null;
      String retLine = "";
      try {
      br = new BufferedReader(new FileReader(filePath));
      while (true) {
      String line = br.readLine();
      if (line == null)
      break;
      retLine += line + "\n";
      }
      } catch (IOException e) {
      e.printStackTrace();
      } finally {
      try {
      br.close();
      } catch (IOException e) {
      e.printStackTrace();
      }
      }
      String[] strArr = retLine.split(separator);
      for (String s : strArr) {
      String[] tmpArr = s.split(separator2);
      System.out.print("번호: " + tmpArr[0] + " / ");
      System.out.print("이름: " + tmpArr[1] + " / ");
      System.out.println("전공: " +tmpArr[2]);
      }
      }
      // 파일 쓰기(새파일로 쓰기, 덮어쓰기)
      public static void writeLineFile(ArrayList<String> strList, String filePath) {
      PrintWriter out = null;
      try {
      out = new PrintWriter(filePath);
      for(String s : strList) {
      out.println(s);
      }
      } catch (IOException e) {
      e.printStackTrace();
      } finally {
      out.close();
      }
      }
      // 파일 쓰기(이어 쓰기)
      public static void writeLineFile(ArrayList<String> strList, String filePath, boolean isAppend) {
      PrintWriter out = null;
      try {
      out = new PrintWriter(new FileWriter(filePath, isAppend));
      for(String s : strList) {
      out.println(s);
      }
      } catch (IOException e) {
      e.printStackTrace();
      } finally {
      out.close();
      }
      }
      }
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