java删除指定目录下指定格式文件的方法

import java.io.File;
 
public class Main {
  static int count = 0;
  public static void main(String[] args) {
    //路径
    String path="/media/lcy/Data/Workspaces/java/crazyJava";
    String geshi=".class";
    refreshFileList(path,geshi);
    System.out.println("共删除了：" + count + "个文件！");
  }
 
  public static void refreshFileList(String strPath,String geshi) {
    File dir = new File(strPath);
    File[] files = dir.listFiles();
    if (files == null)
    {
      System.out.println("该目录下没有任何一个文件！");
      return;
    }
    for (int i = 0; i < files.length; i++) {
      if (files[i].isDirectory()) {
        refreshFileList(files[i].getAbsolutePath(),geshi);
      }else {
        String strFileName = files[i].getAbsolutePath().toLowerCase();
        if(strFileName.endsWith(geshi)){
          System.out.println("正在删除：" + strFileName);
          files[i].delete();
          count++;
        }
      }
    }
  }
}