Java软贱攻城狮

import java.io.File; import java.math.BigDecimal; import java.text.SimpleDateFormat; import java.util.Date; public class Demo { public static void main(String[] args) throws Exception { File file ...

public class Demo { public static void main(String[] args) throws Exception { File file = new File("e:" + File.separator); if (file.isDirectory()) { File[] result = file.listFiles(); for (F...

范例：操作文件·创建文件：public boolean createNewFile( )throws IOException;   |-如果目录不能访问；   |-如果现在文件重名，或者是文件名称错误；·删除文件：public boolean delete( );·判断文件是否存在：public boolean exists（）import java.io.File; public class ...