Java.io.OutputStreamWriter.flush()方法實例

java.io.OutputStreamWriter.flush() 方法刷新流。

聲明

以下是java.io.OutputStreamWriter.flush()方法的聲明

public void flush()

參數

• NA

返回值

此方法無返回值。

異常

• IOException -- 如果發生I/ O錯誤。

例子

下面的示例演示java.io.OutputStreamWriter.flush()方法的用法。

package com.yiibai; import java.io.*; public class OutputStreamWriterDemo { public static void main(String[] args) { try { // create a new OutputStreamWriter OutputStream os = new FileOutputStream("test.txt"); OutputStreamWriter writer = new OutputStreamWriter(os); // create a new FileInputStream to read what we write FileInputStream in = new FileInputStream("test.txt"); // write something in the file writer.write(70); // flush the stream System.out.println("Flushing Stream..."); writer.flush(); System.out.println("Stream flushed."); // read what we write System.out.println("" + (char) in.read()); } catch (Exception ex) { ex.printStackTrace(); } } }

讓我們編譯和運行上面的程序，這將產生以下結果：

Flushing Stream... Stream flushed. F