PipedInputStream类的connect()方法 (PipedInputStream Class connect() method)

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

  connect()方法在java.io包中可用。

• connect() method is used to cause this PipedInputStream to be connected to the given PipedOutputStream when the PipedInputStream is not previously connected to any of the other PipedOutputStream.

  当PipedInputStream先前未连接到任何其他PipedOutputStream时，使用connect()方法使此PipedInputStream连接到给定的PipedOutputStream。

• connect() 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.

  connect()方法是一种非静态方法，仅可通过类对象访问，如果尝试使用类名访问该方法，则会收到错误消息。

• connect() method may throw an exception at the time of connecting the stream.

  connect()方法在连接流时可能会引发异常。

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

  IOException ：在执行过程中遇到任何输入/输出错误时，可能引发此异常。

Syntax:

句法：

public void connect(PipedOutputStream pos);

Parameter(s):

参数：

• PipedOutputStream pos – represents the PipedOutputStream to connect to this PipedInputStream.

  PipedOutputStream pos –表示要连接到此PipedInputStream的PipedOutputStream。

Return value:

返回值：

The return type of the method is void, it returns nothing.

该方法的返回类型为void ，不返回任何内容。

Example:

例：

// Java program to demonstrate the example // of void connect(PipedOutputStream pos)// method of PipedInputStreamimport java.io.*;public class ConnectOfPIS {
       public static void main(String[] args) throws Exception {
           int val = 65;                try {
               // Instantiates PipedInputStream and             // PipedOutputStream            PipedInputStream pipe_in = new PipedInputStream();            PipedOutputStream pipe_out = new PipedOutputStream();            // By using connect() method is to            // connect this pipe_in to the given pipe_out            pipe_in.connect(pipe_out);                        for (int i = 0; i < 3; ++i) {
                   // By using write() method is to                // write the val to the stream pipe_out                pipe_out.write(val);                val++;            }            // when we call read() after closing the stream            // will result an exception            for (int i = 0; i < 3; ++i) {
                   // By using read() method is to                // read the integer and convert it into                // char                char ch = (char) pipe_in.read();                System.out.println("pipe_in.read(): " + ch);            }            // By using close() method is to close            // the stream            pipe_in.close();            pipe_out.close();        } catch (Exception ex) {
               System.out.println(ex.toString());        }    }}

Output

输出量

pipe_in.read(): Apipe_in.read(): Bpipe_in.read(): C

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