javaIO讀和寫和建立資料夾的基礎簡單操作

導語：Java是一門面向物件程式語言，不僅吸收了C++語言的各種優點，還摒棄了C++裡難以理解的`多繼承、指標等概念，因此Java語言具有功能強大和簡單易用兩個特徵。下面我們來看看javaIO讀和寫和建立資料夾的基礎簡單操作，希望對大家有所幫助。

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package e16; import ; import NotFoundException; import Reader; import Writer; import ception;

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public class FileUtil { public static final String PATH=roperty(""); public void cj(String path) { File file=new File(PATH+path); int index=xOf("."); if(index==-1) { if(!ts()) { rs(); } }else { int index2=IndexOf("/"); String string=path.substring(0, index2); if(!ts()) { File file2=new File(PATH+string); rs(); } } try { teNewFile(); } catch (IOException e) { // TODO Auto-generated catch block tStackTrace(); } } }

public class TestFileUtil {public static void main(String[] args) {

1	//讀和寫的初始化 FileReader fileReader=null; FileWriter fileWriter=null; try {

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//讀和寫的初始化 fileReader=new FileReader(file); ("/src/com/lanou/day18/"); fileWriter=new FileWriter(fileName); //將讀出來的資料寫入 int lenght=0; char[] context=new char[1024]; while((lenght=fileReader.read(context))!=-1) { e(context,0,lenght); }

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//完成後重新整理 h(); } catch (FileNotFoundException e) { // TODO Auto-generated catch block tStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block tStackTrace(); }finally { if(fileWriter!=null) { try {

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//關閉寫入流 fileWriter.close(); } catch (IOException e) { // TODO Auto-generated catch block tStackTrace(); } } } }