信息隐蔽的概念与下述哪一种概念直接相关( )

A．public OutputStreamWriter(OutputStream out)
B．public voidwrite(intc) throws IOException
C．public voidwrite(String str)throws IOException
D．public flush throws IOException

A．if (true)
System. out. println("true");
else;
B．if (5＜＞1)
System. out. println( "not equal" );
C．for (iht j=20;j＜＜50;j--)
System. out. println (j);
D．while (j＞＞=50)
sum +=j;
j--;