Java 将一个文本的内容写入另一个
import java.io.*;
class TestOutput{
public static void main(String arg[]){
FileOutputStream fos =null;
FileInputStream fis = null;
try{
fis= new FileInputStream("c:/from.txt");
fos =new FileOutputStream("C:/to.txt");//打开会被清空
/*String s="测试数据";
byte[] buffer = s.getBytes();
fos.write(buffer);*/
byte [] buffer=new byte[10];
while(true){
int result=fis.read(buffer);
if(result==-1){
break;
}
fos.write(buffer,0,result);
}
}