复制文件的问题：使用FileInputStream和FileOutputStream实现文件复制

public class Test {

public static void main ( String [] args )

{

Test t = new Test ();

t . upload ();

}

public void upload ()

{

Scanner sc = new Scanner ( System . in );

System . out . println ( "路径" );

String str = sc . next ();

File f = new File ( str );

System . out . println ( "复制的位置：" );

String di = sc . next ();

FileInputStream fi = null ;

FileOuputStream fo = null ;

try {

fi = new FileInputStream ( f );

fo = new FileOutputStream ( di + File . separator + f . getName ()); //复制文件的名字

int num = 0 ;

while (( num = fi . read ())!=- 1 )

{

fo . write ( num );

}

System . out . println ( "成功" );

}

catch ( Exception e )

{

e . printStackTrace ();

System . out . println ( "失败" );

}

finally

{

try {

fi . close ();

fo . close ();

}

catch ( IOException e )

{

e . printStackTrace ();

}

}

}

}