java菜鸟有问题想请教各位大师、、
在java中怎么将一个文件复制到另外一个目录上去。。我要实现的代码

------解决方案--------------------
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class CopyFile {
public boolean copy(String file1,String file2) {

File in=new File(file1);
File out=new File(file2);
if(!in.exists()){
System.out.println(in.getAbsolutePath()+"源文件路径错误！！！");
return false;
}
else {
System.out.println("源文件路径"+in.getAbsolutePath());
System.out.println("目标路径"+out.getAbsolutePath());

}
if(!out.exists()) 
out.mkdirs();
File[] file=in.listFiles();
FileInputStream fin=null;
FileOutputStream fout=null;
for(int i=0;i<file.length;i++){
if(file[i].isFile()){
try {
fin=new FileInputStream(file[i]);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println("in.name="+file[i].getName());
try {
fout=new FileOutputStream(new File(file2+"/"+file[i].getName()));
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println(file2);
int c;
byte[] b=new byte[1024*5];
try {
while((c=fin.read(b))!=-1){

fout.write(b, 0, c);
System.out.println("复制文件中！");
}
<------------------------------注意
fin.close();
fout.flush();
fout.close();
<--------------------------------
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
<-------------------------------注释掉
// return true;
}
else copy(file1+"/"+file[i].getName(),file2+"/"+file[i].getName());
}

return false;


}

public static void main(String[] args) {
CopyFile copyFile = new CopyFile();
copyFile.copy("E:\\study\\opngl", "E:\\opengl");
}
}
楼主看下