Readable
 
    public interface Readable 
 
 
     
     
      
       
       |  Known Indirect Subclasses  
          
          BufferedReader, 
          CharArrayReader , 
          CharBuffer , 
          FileReader , 
          FilterReader , 
          InputStreamReader , 
          LineNumberReader , 
          PipedReader , 
          PushbackReader , 
          Reader , 
          StringReader | 
 
      
    
 
     
    
 
    A Readable是角色的来源。 从Readable字符经由提供给读出方法的呼叫者CharBuffer 。
 
    Summary
 
     
     
     
     
     
     
     
     
     
     
     
    Public methods
 
     
     
     read
 
      
     
int read (CharBuffer cb)
 
     尝试将字符读入指定的字符缓冲区。 该缓冲区原样用作字符的存储库:唯一的更改是放置操作的结果。 不执行翻转或倒带缓冲器。
 
      
       
        
        | Parameters | 
 
        
        | cb | CharBuffer: the buffer to read characters into | 
 
       
     
 
      
       
        
        | Returns | 
 
        
        | int | The number of charvalues added to the buffer, or -1 if this source of characters is at its end |