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