java中文件的过滤器

  File file=new File("d:\\");
 String []names=file.list(new NameFileter());
  for(String name:names)
 {
  System.out.println(name);
  }

---过滤器选择

package com.itcast.info.file.filter;

import java.io.File;
import java.io.FilenameFilter;

public class NameFileter implements FilenameFilter {

 @Override
 public boolean accept(File dir, String name) {
  
  return name.endsWith(".pdf");
 }

}

 

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过滤隐藏文件

//过滤不是隐藏文件
 public static void testhidden() {

  File file=new File("c:\\");
  File [] files=file.listFiles(new FileHiddenName());
  for(File f:files)
  {
   System.out.println(f);
  }
 }

 

 

 

package com.itcast.info.file.filter;

import java.io.File;
import java.io.FileFilter;

public class FileHiddenName implements FileFilter {

 //过滤不是隐藏文件s
 @Override
 public boolean accept(File pathname) {
  // TODO Auto-generated method stub
  return !pathname.isHidden();
 }

}

 

 

-----------------------------

package com.itcast.info.file.filter;

import java.io.File;
import java.io.FilenameFilter;

public class SuffixFilter implements FilenameFilter {

 
 private String suffix;
 
 public SuffixFilter(String suffix) {
  super();
  this.suffix = suffix;
 }

 @Override
 public boolean accept(File dir, String name) {
  
  return name.endsWith(suffix);
 }

}