java.io.PipedWriter.flush() 方法刷新此输出流并强制写出所有缓冲的输出字符。这将通知字符守候在管道的任何读取器。
声明
以下是java.io.PipedWriter.flush()方法的声明
public void flush()
参数
-
NA
返回值
此方法不返回任何值。
异常
-
IOException -- 如果发生I/ O错误。
例子
下面的示例演示java.io.PipedWriter.flush()方法的用法。
package com.yiibai; import java.io.*; public class PipedWriterDemo { public static void main(String[] args) { // create a new Piped writer and reader PipedWriter writer = new PipedWriter(); PipedReader reader = new PipedReader(); try { // connect the reader and the writer writer.connect(reader); // write something writer.write(70); writer.write(71); // flush the writer System.out.println("Flushing writer..."); writer.flush(); System.out.println("Writer flushed."); // print what we wrote for (int i = 0; i < 2; i++) { System.out.println("" + (char) reader.read()); } } catch (IOException ex) { ex.printStackTrace(); } } }
让我们编译和运行上面的程序,这将产生以下结果:
Flushing writer... Writer flushed. F G