import java.io.*;
//import java.io.BufferedReader;
//import java.io.BufferedWriter;
//import java.io.File;
//import java.io.FileInputStream;
//import java.io.FileNotFoundException;
//import java.io.FileOutputStream;
//import java.io.FileReader;
//import java.io.IOException;
//import java.io.InputStreamReader;
//import java.io.OutputStream;
//import java.io.OutputStreamWriter;
//import java.io.PrintStream;
public class IODemo {
public static void main(String[] args) throws IOException
{
test();
}
public static void test() throws IOException
{
sopln("--start--");
// fileWrite(newFile("D:\\JavaCode\\day30\\day30\\src\\com\\youma\\www\\dont.txt"));
// showAllFiles("D:\\JavaCode\\day13");
copyFile("D:\\JavaCode\\day30\\day30\\src\\com\\youma\\www\\dont.txt","D:\\JavaCode\\day30\\day30\\src\\com\\youma\\www\\do.txt");
// newFile("D:\\JavaCode\\day30\\day30\\src\\com\\youma\\www\\speak.txt");
sopln("--end--");
}
// 键盘输入文件内容
public static void fileWrite(File file) throws FileNotFoundException
{
BufferedReader fr = new BufferedReader(new InputStreamReader((System.in)));
OutputStreamWriter bw = new OutputStreamWriter(new FileOutputStream(file));
// File f = file;
String str = null;
try {
while((str =fr.readLine())!=null)
{
if(str.equals("over"))
break;
bw.write(str+"\r\n");
bw.flush();
}
fr.close();
bw.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static File newFile(String dir) throws IOException
{
// String[] stri = di.split("\\.");
// sopln(stri.length);
// String str1 = stri[0];
// sopln(str1);
// String str2 = stri[1];
// sopln(str2);
File file = new File(dir);
if(!file.exists())
{
sopln("no file now set");
file.createNewFile();
}
return file;
}
public static void sopln(Object obj)
{
System.out.println(obj.toString());
}
public static void showAllFiles(String dir) throws IOException
{
File f = new File(dir);
if(!f.exists())
sopln("路径有误！");
else
{
File[] fil = f.listFiles();
for(File file:fil)
{
if(file.isDirectory())
showAllFiles(file.getPath());
else
sopln(file.getPath());
}
}
}
public static void copyFile(String str, String dir) throws IOException
{
File copy = newFile(dir);
File file = new File(str);
if(!file.exists())
sopln("原始路径有误！");
else
{
BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file)));
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(copy)));
String st = null;
while((st = br.readLine()) != null)
{
bw.write(st);
bw.newLine();
}
bw.flush();
br.close();
bw.close();
}
}
}