package com.zhidi.lianxi;


import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;


//編寫一個程式，在E盤下建立一個abc.txt的文字文件，
//通過輸出流在文件內新增資料，然後在把abc.txt複製到F盤下
public class Lianxi01 {
public static void main(String[] args) throws IOException {
String a = "這個檔案要從e盤複製到f盤";
byte[] b = a.getBytes();
FileOutputStream fos = new FileOutputStream("E:\\abc.txt");
fos.write(b);
fos.close();


}

}

____________________________分割線_____________________________________________________________________

package com.zhidi.lianxi;


import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;


public class Test {

public FileInputStream fis;
public FileOutputStream fos;//設定為成員變數
public static void main(String[] args) throws IOException {
Test t = new Test();
t.create();
t.copy();


}
public void create() throws IOException{
fos = new FileOutputStream("E:\\abc.txt");
String s = "這個檔案要從e盤複製到f盤";
fos.write(s.getBytes());
fos.close();
}

public void copy() throws IOException{
fis = new FileInputStream("E:\\abc.txt");
byte[] b = new byte[1024];
int len = fis.read(b);

String s = new String(b,0,len);

fos = new FileOutputStream("F:\\abc.txt");
fos.write(s.getBytes());

fos.close();
fis.close();
}


}