Java.io.CharArrayWriter.append()方法範例

java.io.CharArrayWriter.append(char c)方法會將特定的字元到這個writer。

宣告

以下是java.io.CharArrayWriter.append(char c)方法的宣告：

public CharArrayWriter append(char c)

引數

• c - 字元以16位元附加。

返回值

當前CharArrayWriter

異常

• NA

例子

下面的範例演示java.io.CharArrayWriter.append(char c)方法的用法。

package com.yiibai;

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();
      }
   }
}

讓我們來編譯和執行上面的程式，這將產生以下結果：

A
AB
ABC
ABCD
ABCDE
ABCDEF