Java Java.io.CharArrayWriter.append() 方法

描述

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

声明

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

 public CharArrayWriter append(char c)

参数

c要附加的16位字符。

返回值

这个CharArrayWriter

异常

不适用

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