java删除一个文件或者文件夹

import java.io.File;

public class FileDelete {
	public static void main(String agrs[]) {
		File file = new File("c:/test");
		deleteFile(file);

//		deleteFile3(file);
	}

	public static void deleteFile(File file) {
		if (file.exists()) {
			if (file.isFile()) {
				file.delete();
				System.out.println(file.getName() + "删除成功");
			} else if (file.isDirectory()) {
				File files[] = file.listFiles();
				for (int i = 0; i < files.length; i++) {
					deleteFile(files[i]);
				}
				file.delete();
				System.out.println(file.getName() + "删除成功");
			}
			
		} else {
			System.out.println("文件不存在");
		}
	}


	//知道提供
	public static void deleteFile3(File file) {
		if (file.isDirectory()) {
			File files[] = file.listFiles();
			for (int i = 0; i < files.length; i++) {
				deleteFile3(files[i]);
			}
		} else if (!file.exists()) {
			System.out.println("file is not exists");
			return;
		}
		file.delete();
		System.out.println(file.getName()+"删除成功");
	}
}