Java Java.io.CharArrayWriter.toCharArray() 方法

  • 描述

    java.io.CharArrayWriter.toCharArray()方法从该编写器返回一个字符数组。
  • 声明

    以下是java.io.CharArrayWriter.toCharArray()方法的声明-
     public char[] toCharArray()
  • 参数

    不适用
  • 返回值

    该方法返回字符数组。
  • 异常

    不适用
  • 例子

    以下示例显示java.io.CharArrayWriter.toCharArray()方法的用法。
     
    package com.jc2182;
    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();
          }
       }
    }
    让我们编译并运行以上程序,这将产生以下结果-
     H
    e
    l
    l
    o
     
    W
    o
    r
    l
    d
    !
    !