Input from memory

1. Input from memory

Package Penalty for com.zachary.io; 

Import java.io.IOException;
 Import java.io.StringReader; 

/ ** 
 * Input from memory 
 * @author Zachary.Zheng 
 * @version 1.0 
 * @date 2019 Nian 11 Yue 10 Ri 
 * / 
public  class MemoryInput {
     / ** 
     * BufferedInputFile.read () read results are used to create a String the StringReader 
     * @param args 
     * @throws IOException
      * / 
    public  static  void main (String [] args) throws IOException { 
        the StringReader in =new new the StringReader (BufferedInputFile.read ( "the src / COM / Zachary / IO / MemoryInput.java" ));
         int C;
         the while (! (C = in.read ()) = -1 ) {
             // Read () is int returns the next byte, it must be transformed into char to print properly. 
            System.out.println (( char ) C); 
        } 
    } 
}

2. formatted memory input, use caution

Package com.zachary.io; 

Import java.io.ByteArrayInputStream;
 Import java.io.DataInputStream;
 Import java.io.IOException; 

/ ** 
 * formatted input memory 
 * used with caution 
 * @author Zachary.Zheng 
 * @version 1.0 
 * @date 2019 dated 10 years. 11 Day 
 * / 
public  class FormattedMemoryInput {
     / ** 
     * formatted data to be read, DataInputStream may be used, which is a byte-oriented I / O class (not character-oriented - Chinese distortion) 
     * 1. encoded as 'GBK' and 'UTF-8' have no effect 
     * @param args 
     * @throws IOException 
      * / 
    public  static void main (String [] args) throws IOException { 
        DataInputStream in = new new DataInputStream (
                 new new A ByteArrayInputStream ( 
                        BufferedInputFile.read ( "the src / COM / Zachary / IO / FormattedMemoryInput.java") the getBytes ( "GBK." ) 
                        ) 
                ); 
        the try {
             the while ( to true ) { 
                System.out.println (( char ) in.readByte ()); 
            } 
        } the catch (exception E) {
             // can catch the end of the input abnormality detecting abnormal but it is wrongly used.
            System.out.println ( "End of Stream" ); 
        } 
        
        in = new new DataInputStream (
                 new new A ByteArrayInputStream ( 
                        BufferedInputFile.read ( . "The src / COM / Zachary / IO / FormattedMemoryInput.java") the getBytes ( "UTF-. 8" ) 
                        ) 
                ); 
        / * 
         method of accessible see how many characters * available () 
         "in a case where the number of bytes that can be read without blocking" literally * 1 
         * 2 mode of operation based on the read media types differ depending 
         * 3. file, which means that the entire file 
         * 4. but for different types of flow may not be the case, so be careful to use 
         * / 
        the while (in.available ()! = 0  ) {
            System.out.println ((char)in.readByte());
        }
    }
}

 

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Origin www.cnblogs.com/zhongli1/p/11832039.html