printstream

PrintStream类flush()方法 (PrintStream 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 PrintWriter stream with the help of writing bytes to the underlying output stream of any buffered output then after flushing the stream.

  flush()方法用于在将字节写入任何缓冲输出的基础输出流之后，然后在刷新流之后，刷新此PrintWriter流。

• 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 does not throw an exception at the time of flushing the stream.

  flush()方法在刷新流时不会引发异常。

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 // PrintStreamimport java.io.*;public class FlushOfPS {
       public static void main(String[] args) {
           String str = "Java Programming";        // Instantiates PrintStream        PrintStream p_stm = new PrintStream(System.out);        // Display str        p_stm.println("str: " + str);        // By using flush() method is to        // flush the stream immediately        p_stm.flush();        System.out.println("Stream Flushed...");        // By using close() method is to         // close the stream p_stm        System.out.println("Stream Shutdown....");        p_stm.close();    }}

Output

输出量

str: Java ProgrammingStream Flushed...Stream Shutdown....

翻译自:

printstream