PipedOutputStream类flush()方法 (PipedOutputStream Class flush() method)

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

  flush()方法在java.io包中可用。

• flush() method is used to flush this PipedOutputStream and forces bytes to be written out of any buffered output.

  flush()方法用于刷新此PipedOutputStream并强制将字节从任何缓冲的输出中写出。

• flush() 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.

  flush()方法是一种非静态方法，只能通过类对象访问，如果尝试使用类名称访问该方法，则会收到错误消息。

• flush() method may throw an exception at the time of flushing the stream.

  flush()方法在刷新流时可能会引发异常。

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

  IOException ：遇到任何输入/输出错误时，可能引发此异常。

Syntax:

句法：

    public void flush();

Parameter(s):

参数：

• It does not accept any parameter.

  它不接受任何参数。

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 flush() method of PipedOutputStream
import java.io.*;
public class FlushOfPOS {
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_out to the given pipe_in
pipe_out.connect(pipe_in);
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++;
}
// By using flush() method is to
// flush the stream
pipe_out.flush();
System.out.println("Stream Flushed!!!");
for (int i = 1; i < 4; ++i) {
// By using read() method is to read
// the integer and converted into int
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

Stream Flushed!!!
pipe_in.read(): A
pipe_in.read(): B
pipe_in.read(): C

翻译自: https://www.includehelp.com/java/pipedoutputstream-flush-method-with-example.aspx