Apache Commons IO - NameFileComparator

NameFileComparator 比較二個檔案的名稱。它可用於根據檔名（區分大小寫、不區分大小寫或依賴於系統大小寫）對檔案列表或陣列進行排序。

類宣告

以下是

org.apache.commons.io.comparator.NameFileComparator 類的宣告：

public class NameFileComparator
   extends Object implements Serializable

NameFileComparator 類示例

以下是我們需要解析的輸入檔案：

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IOTester.java

import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import org.apache.commons.io.IOCase;
import org.apache.commons.io.comparator.NameFileComparator;
import org.apache.commons.io.filefilter.FileFileFilter;
public class IOTester {
   public static void main(String[] args) {
      try {
         usingNameFileComparator();
      } catch(IOException e) {
         System.out.println(e.getMessage());
      }
   }
   public static void usingNameFileComparator() throws IOException {
      //get the current directory
      File currentDirectory = new File(".");
      NameFileComparator comparator = new
      NameFileComparator(IOCase.INSENSITIVE);
      File[] sortedFiles = comparator.sort(currentDirectory.listFiles((FileFilter)FileFileFilter.FILE));
      System.out.println("Sorted By Name: ");
      for(File file:sortedFiles) {
         System.out.println(file.getName());
      }
   }
}

輸出

它將列印以下結果。

Sorted By Name:
.classpath
.project
input.txt