stringwriter_Java StringWriter getBuffer（）方法与示例

参考链接： Java StringWriter类

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  StringWriter类的getBuffer()方法 (StringWriter Class getBuffer() method) 

 getBuffer() method is available in java.io package. getBuffer()方法在java.io包中可用。 getBuffer() method is used to get the StringBuffer that holds the present buffer value. getBuffer()方法用于获取保存当前缓冲区值的StringBuffer。 getBuffer() 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. getBuffer()方法是一个非静态方法，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。 getBuffer() method does not throw an exception at the time of returning StringBuffer. 返回StringBuffer时， getBuffer()方法不会引发异常。 

 Syntax: 

  句法：  

     public StringBuffer getBuffer();

 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 StringBuffer, it returns the StringBuffer itself that holds the current buffer value. 

  该方法的返回类型为StringBuffer ，它返回保存当前缓冲区值的StringBuffer本身。  

 Example: 

  例：  

 // Java program to demonstrate the example 

// of StringBuffer getBuffer() method of StringWriter

import java.io.*;

public class GetBufferOfFSW {

    public static void main(String[] args) throws Exception {

        StringWriter str_w = null;

        String str = "Java World!!!";

        try {

            // Instantiates StringWriter

            str_w = new StringWriter();

            str_w.write(str);

            // By using getBuffer() method is to

            // get the buffer of this str_w stream

            StringBuffer str_b = str_w.getBuffer();

            System.out.println("str_w.getBuffer(): " + str_b);

        } catch (Exception ex) {

            System.out.println(ex.toString());

        } finally {

            // with the help of this block is to

            // free all necessary resources linked

            // with the stream

            if (str_w != null) {

                str_w.close();

            }

        }

    }

}

 Output 

  输出量  

 str_w.getBuffer(): Java World!!!

  翻译自: https://www.includehelp.com/java/stringwriter-getbuffer-method-with-example.aspx

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