单项选择题
为了从文本文件中逐行读取内容,应该使用哪个处理流对象?()
A. BufferedReader
B. BufferedWriter
C. BufferedInputStream
D. BufferedOutputStream
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相关考题
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单项选择题
在输入流的read方法返回哪个值的时候表示读取结束?()
A. 0
B. 1
C. -1
D. null -
单项选择题
下列哪项是Java语言中所定义的字节流?()
A.Output
B.Reader
C.Writer
D.InputStream -
多项选择题
class Order implements Runnable { public void run () { try { Thread.sleep (2000) ; } catch (Exception e) System.out.print("in") ; public static void main (String [] args) { Thread t = new Thread (new Order ()) ; t.start () ; System.out.print ("pre ") ; try { t.join () ; } catch (Exception e) { } System.out.print ("post") ; 可产生哪两项结果?()
A. pre in post
B. pre in
C. in post pre
D. in pre post
E. pre post in
