pipedreader

PipedReader類ready()方法 (PipedReader Class ready() method)

• ready() method is available in java.io package.

  ready()方法在java.io包中可用。

• ready() method is used to check whether this PipedReader stream is ready to be read or not.

  ready()方法用于檢查此PipedReader流是否已準備好被讀取。

• ready() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.

  ready()方法是一種非靜態方法，只能通過類對象訪問，如果嘗試使用類名稱訪問該方法，則會收到錯誤消息。

• ready() method may throw an exception at the time of checking the state of the stream.

  在檢查流的狀態時， ready()方法可能會引發異常。

  IOException: This exception may throw when getting any input/output error.

  IOException ：遇到任何輸入/輸出錯誤時，可能引發此異常。

Syntax:

句法：

public boolean ready();

Parameter(s):

參數：

• It does not accept any parameter.

  它不接受任何參數。

Return value:

返回值：

The return type of the method is boolean, it returns true when this stream is ready to read (i.e. when input is available for next read() without blocking) otherwise it returns false.

該方法的返回類型為boolean ，當此流準備好讀取時(即，當輸入可用于下一個read()而不阻塞時)返回true，否則返回false。

Example:

例：

// Java program to demonstrate the example // of boolean ready() method of PipedReaderimport java.io.*;public class ReadyOfPR {public static void main(String[] args) throws Exception {try {// Instantiates PipedReader and PipedWriterPipedWriter pipe_w = new PipedWriter();PipedReader pipe_r = new PipedReader();pipe_r.connect(pipe_w);// By using ready() method is to check whether// this stream pipe_r is ready to be read or notboolean status = pipe_r.ready();System.out.println("pipe_r.ready(): " + status);// By using close() method is to close// the streampipe_w.close();pipe_w.close();} catch (Exception ex) {System.out.println(ex.toString());}} }

Output

輸出量

pipe_r.ready(): false

翻譯自: https://www.includehelp.com/java/pipedreader-ready-method-with-example.aspx

pipedreader

總結

以上是生活随笔為你收集整理的pipedreader_Java PipedReader ready（）方法与示例的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。