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Read boolean from file using DataInputStream

  1. /*
  2.   Read boolean from file using DataInputStream
  3.   This Java example shows how to read a Java boolean primitive value from file using
  4.   readBoolean method of Java DataInputStream class.
  5. */
  6.  
  7. import java.io.DataInputStream;
  8. import java.io.FileInputStream;
  9. import java.io.FileNotFoundException;
  10. import java.io.IOException;
  11.  
  12. public class ReadBooleanFromFile {
  13.  
  14.   public static void main(String[] args) {
  15.  
  16.     String strFilePath = "C://FileIO//readBoolean.txt";
  17.    
  18.     try
  19.     {
  20.       //create FileInputStream object
  21.       FileInputStream fin = new FileInputStream(strFilePath);
  22.      
  23.       /*
  24.        * To create DataInputStream object, use
  25.        * DataInputStream(InputStream in) constructor.
  26.        */
  27.      
  28.        DataInputStream din = new DataInputStream(fin);
  29.      
  30.        /*
  31.         * To read a Java boolean primitive from file, use
  32.         * byte readBoolean() method of Java DataInputStream class.
  33.         *
  34.         * This method reads one byte from file and returns true if byte is nonzero,
  35.         * false if the byte is zero.
  36.         */
  37.        
  38.         boolean b = din.readBoolean();
  39.        
  40.         System.out.println("boolean : " + b);
  41.        
  42.         /*
  43.          * To close DataInputStream, use
  44.          * void close() method.
  45.          */
  46.          din.close();
  47.        
  48.     }
  49.     catch(FileNotFoundException fe)
  50.     {
  51.       System.out.println("FileNotFoundException : " + fe);
  52.     }
  53.     catch(IOException ioe)
  54.     {
  55.       System.out.println("IOException : " + ioe);
  56.     }
  57.   }
  58. }