Commons Io 简明教程

Apache Commons IO - NameFileComparator

NameFileComparator 比较两个文件的名称。它可用于使用文件名以区分大小写、不区分大小写或系统相关的区分大小写方式对文件列表或数组进行排序。

Class Declaration

以下是声明:

org.apache.commons.io.comparator.NameFileComparator 类:

public class NameFileComparator
   extends Object implements Serializable

Example of NameFileComparator Class

以下是我们需要解析的输入文件 -

Welcome to TutorialsPoint. Simply Easy Learning.

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());
      }
   }
}

Output

它将打印以下结果。

Sorted By Name:
.classpath
.project
input.txt