为了向文件hello.txt尾加数据,下列哪个是正确创建指向hello.txt的流( )
A.
OutputStream out=new FileOutputStream("hello.txt");
B.
OutputStream out=new FileOutputStream("hello.txt",true);
C.
OutputStream out=new FileOutputStream("hello.txt",false);
D.
OutputStream out=new OutputStream("hello.txt",true);