Java Java.io.CharArrayWriter.close() 方法

描述

java.io.CharArrayWriter.close()方法关闭流，但不释放缓冲区。

声明

以下是java.io.CharArrayWriter.close()方法的声明-

 public void close()

参数

不适用

返回值

此方法不返回任何值。

异常

不适用

例子

以下示例显示java.io.CharArrayWriter.close()方法的用法。

 
package com.jc2182; 
import java.io.CharArrayWriter;

public class CharArrayWriterAppendDemo {
   public static void main(String[] args) {      
      CharArrayWriter chw = null;
      
      try {
         // create character array writer
         chw = new CharArrayWriter();
         
         // declare character sequence
         CharSequence csq = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
         
         // closes the stream
         chw.close();
         
         // append character sequence to the writer
         chw.append(csq);
         
         // prints out the character sequences
         System.out.println(chw.toString());
         
      } 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-

 ABCDEFGHIJKLMNOPQRSTUVWXYZ