阅读以下代码: <br /> public class Test{ <br /> public static void main(){ <br /> System.out.println(“x=”+x);   } } <br /> 请问,代码运行的结果是?() 
A、 x
B、 x=x
C、 “x=”+5
D、 编译报错
A、 x
B、 x=x
C、 “x=”+5
D、 编译报错
A、BufferedRead br1 = System.in; BufferedRead br2 = new BufferedReader(clientSocket.getInputStream())); PrintStream ps = new PrintStream(clientSocket.getOutputStream()); B、BufferedReader br1 = new BufferedReader(new InputStreamReader(System.in));BufferedReader br2 = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));PrintStream ps = new PrintStream(clientSocket.getOutputStream()); C、 BufferedRead br1 = new InputStreamReader(System.in); BufferedReader br2 = newInputStreamReader(clientSocket.getInputStream()); PrintStream ps = new PrintStream(clientSocket.getOutputStream()); D、 BufferedReader br1 = new BufferedReader(new InputStreamReader(System.in));BufferedReader br2 = new BufferedReader(new InputStreamReader(clientSocket.getInputStream())); PrintStream ps = clientSocket.getOutputStream();
A、在这两行代码前加上代码:response.setContentType("text/html,charset=GBK"); B、已经可以显示汉字,不用添加任何代码 C、在这两行代码前加上代码:response.setContentType("text/html"); D、在这两行代码前加上代码:response.setContentType("text/html,charset=gb2312");
A、代码得到编译,并输出“s=” B、代码得到编译,并输出“s=null” C、由于Strings没有初始化,代码不能编译通过 D、代码得到编译,但捕获到Null Point Exception异常