JAVAIO学习.doc

文件对象的生成和文件的创建?/*?*?ProcessFileName.java?*?*?Created?on?2006年8月22日,?下午3:10?*?*?文件对象的生成和文件的创建?*/package?study.iostudy;import?java.io.*;public?class?GenerateFile{????public?static?void?main(String[]?args)????{????????File?dirObject?=?new?File(d:\\mydir);????????File?fileObject1?=?new?File(oneFirst.txt);????????File?fileObject2?=?new?File(d:\\mydir,?firstFile.txt);????????System.out.println(fileObject2);????????try????????{????????????dirObject.mkdir();????????}catch(SecurityException?e)????????{????????????e.printStackTrace();????????}????????try????????{????????????fileObject2.createNewFile();????????????fileObject1.createNewFile();????????}catch(IOException?e)????????{????????????e.printStackTrace();????????}????}}?文件名的处理/*?*?ProcessFileName.java?*?*?Created?on?2006年8月22日,?下午3:29?*?*?文件名的处理?*/package?study.iostudy;import?java.io.*;/*?*?文件名的处理?*?String?getName();?获得文件的名称，不包含文件所在的路径。?*?String?getPath();?获得文件的路径。?*?String?getAbsolutePath();?获得文件的绝对路径。?*?String?getParent();?获得文件的上一级目录的名称。?*?String?renameTo(File?newName);?按参数中给定的完整路径更改当前的文件名。?*?int?compareTo(File?pathName);?按照字典顺序比较两个文件对象的路径。?*?boolean?isAbsolute();?测试文件对象的路径是不是绝对路径。?*/public?class?ProcesserFileName{???????public?static?void?main(String[]?args)????{????????File?fileObject1?=?new?File(d:\\mydir\\firstFile.txt);????????File?fileObject2?=?new?File(d:\\firstFile.txt);????????boolean?pathAbsolute?=?fileObject1.isAbsolute();????????System.out.println(*?*?*?*?*?*?*?*?*?*?*?*?*?*?*?*?*?*?*?*?*?*?*?*?);????????System.out.println(There?are?some?information?of?fileObject1s?file?name:);????????System.out.println(fileObject1:??+?fileObject1);??????????System.out.println(fileObject2:??+?fileObject2);????????System.out.println(file?name:??+?fileObject1.getName());????????System.out.println(file?path:??+?fileObject1.getPath());????????System.out.println(file?absolute?path:??+?fileObject1.getAbsolutePath());????????System.out.println(files?parent?direc