java删除文件夹下相同后缀文件和删除文件夹

package deletefiles;

import java.io.File;

/**
 * delete files class
 * @author zs
 */
public class DeleteClass {

    // Examples : the path of delete file
    public static final String delpath = "F:/xxx.class";

    // Examples : the end name of delete file
    public static final String delEndName = "class";

    /**
     * function
     * @param delpath
     *            path of file
     * @param delEndName
     *            end name of file
     */
    public DeleteClass(String delpath, String delEndName) {
        deleteEndFile(delpath, delEndName);
    }

    /**
     * delete the end name file
     * @param delpath
     *            path of file
     * @param delEndName
     *            end name of file
     * @return boolean the result
     */
    public boolean deleteEndFile(String delPath, String delEndName) {

        // param is null
        if (delPath == null || delEndName == null) {
            System.out.println("path or name error");
            return false;
        }
        try {
            // create file
            File file = new File(delPath);
            if (file != null) {
                if (file.isDirectory()) {
                    // file list
                    String[] fileList = file.list();
                    File delFile = null;

                    // digui
                    for (int i = 0; i < fileList.length; i++) {
                        // create new file
                        delFile = new File(delPath + "/" + fileList[i]);
                        if (delFile != null) {
                            deleteEndFile(delFile.toString(), delEndName);
                        } else {
                            System.out.println("file path is null");
                        }
                    }
                } else if (file.isFile()) {

                    // check the end name
                    if (file.toString().contains(".")
                            && file.toString().substring(
                                    (file.toString().lastIndexOf(".") + 1))
                                    .equals(delEndName)) {
                        // file delete
                        file.delete();
                    }
                } else {
                    System.out.println("file is error");
                }
            } else {
                System.out.println("file path is null");
            }
        } catch (Exception ex) {
            ex.printStackTrace();
            return false;
        }
        return true;
    }

    /**
     * delete all files
     * @param delpath
     *            delpath path of file
     * @return boolean the result
     */
    public boolean deleteFile(String delpath) {

        try {
            // create file
            File file = new File(delpath);

            if (!file.isDirectory()) {
                file.delete();
            } else if (file.isDirectory()) {

                String[] filelist = file.list();
                for (int i = 0; i < filelist.length; i++) {

                    //create new file
                    File delfile = new File(delpath + "/" + filelist[i]);
                    if (!delfile.isDirectory()) {
                        delfile.delete();
                    } else if (delfile.isDirectory()) {
                        
                        //digui
                        deleteFile(delpath + "/" + filelist[i]);
                    }
                }
                file.delete();
            }
        } catch (Exception ex) {
            ex.printStackTrace();
            return false;
        }
        return true;
    }
}

 摘要：自己在编译java工程以后总生成一堆class文件，以后拷贝的时候比较麻烦，写了个方法删除它们，顺便找了个删除所有文件的方法。