Java Java.io.CharArrayWriter.append() 方法

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  描述

  java.io.CharArrayWriter.append(char c)方法将特定字符追加到此编写器。
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  声明

  以下是java.io.CharArrayWriter.append(char c)方法的声明-

   public CharArrayWriter append(char c)

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  参数

  c要附加的16位字符。
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  返回值

  这个CharArrayWriter
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  异常

  不适用
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  例子

  以下示例显示java.io.CharArrayWriter.append（char c）方法的用法。

   
  package com.jc2182; 
  import java.io.CharArrayWriter;
  
  public class CharArrayWriterDemo {
     public static void main(String[] args) {      
        CharArrayWriter chw = null;
        
        // create buffer
        char[] ch = {'A','B','C','D','E','F'};
        
        try {
           // create new character array writer
           chw = new CharArrayWriter();
           
           // for each character in the buffer
           for(char c:ch) {
              // append character to the writer
              chw.append(c);
              
              // prints the character array as string
              System.out.println(chw.toString());
           }
        } catch(Exception e) {
           // for any exception
           e.printStackTrace();
        } finally {
           // closes the stream
           if(chw!=null)
              chw.close();
        }
     }
  }
  

  让我们编译并运行以上程序，这将产生以下结果-

   
  A
  AB
  ABC
  ABCD
  ABCDE
  ABCDEF