Java Java.io.CharArrayWriter.toCharArray()用法及代码示例

描述

这个java.io.CharArrayWriter.toCharArray()方法从这个 writer 返回一个字符数组。

声明

以下是声明java.io.CharArrayWriter.toCharArray()方法≫

public char[] toCharArray()

参数

NA

返回值

该方法返回字符数组。

异常

NA

示例

下面的例子展示了 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();
      }
   }
}

让我们编译并运行上面的程序，这将产生以下结果——

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