Java Java.io.CharArrayWriter.toCharArray()用法及代碼示例

描述

這個java.io.CharArrayWriter.toCharArray()方法從這個 writer 返回一個字符數組。

聲明

以下是聲明java.io.CharArrayWriter.toCharArray()方法≫

public char[] toCharArray()

參數

NA

返回值

該方法返回字符數組。

異常

NA

示例

下麵的例子展示了 java.io.CharArrayWriter.toCharArray() 方法的用法。

package com.tutorialspoint;

import java.io.CharArrayWriter;

public class CharArrayWriterDemo {
   public static void main(String[] args) {      
      CharArrayWriter chw = null;
            
      try {
         // create character array writer
         chw = new CharArrayWriter();
         
         String str = "Hello World!!";
         
         // write string to writer
         chw.write(str);
         
         // get array of character from the writer
         char[] ch = chw.toCharArray();
         
         // for each character in character array
         for (char c:ch)
         {
         
            // print character
            System.out.println(c);
         }
         
      } catch(Exception e) {
         // for any error
         e.printStackTrace();
      } finally {
         // releases all system resources from writer
         if(chw!=null)
            chw.close();
      }
   }
}

讓我們編譯並運行上麵的程序，這將產生以下結果——

H
e
l
l
o
 
W
o
r
l
d
!
!