Java read byte array

Read byte array from file using Data Input Stream

import java.io.DataInputStream;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

public class ReadByteArrayFromFile

{

public static void main(String[] args)

{

String strFilePath = "C://FileIO//readByteArray.txt";

try

{

FileInputStream fin = new FileInputStream(strFilePath);    DataInputStream din = new DataInputStream(fin);

byte b[] = new byte[10];

din.read(b);

din.close();

}

catch(FileNotFoundException fe)

{

System.out.println("FileNotFoundException : " + fe);

}

catch(IOException ioe)

{

System.out.println("IOException : " + ioe);

   }

 }

}

Read byte from file using Data Input Stream

import java.io.DataInputStream;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

public class ReadByteFromFile

{

public static void main(String[] args)

{

 String strFilePath = "C://FileIO//readByte.txt";

 try

{

FileInputStream fin = new FileInputStream(strFilePath);  DataInputStream din = new DataInputStream(fin);  byte b

= din.readByte();

System.out.println("byte : " + b);

din.close();

}

catch(FileNotFoundException fe)

{

System.out.println("FileNotFoundException : " + fe);

}

catch(IOException ioe)

{

System.out.println("IOException : " + ioe);

    }

  }

}

Read char from file using Data Input Stream

import java.io.DataInputStream;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;  

public class ReadCharFromFile

{

public static void main(String[] args)

{

String strFilePath = "C://FileIO//readChar.txt";

try

{

FileInputStream fin = new FileInputStream(strFilePath);

DataInputStream din = new DataInputStream(fin);

 char ch = din.readChar();

 System.out.println("Char : " + ch);

 din.close();

}

catch(FileNotFoundException fe)

{

System.out.println("FileNotFoundException : " + fe);

}

catch(IOException ioe)

{

System.out.println("IOException : " + ioe);

    }

  }

}

Read double from file using Data Input Stream

import java.io.DataInputStream;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

public class ReadDoubleFromFile

{

public static void main(String[] args)

{

String strFilePath = "C://FileIO//readDouble.txt";

try

FileInputStream fin = new FileInputStream(strFilePath);DataInputStream din = new DataInputStream(fin);

double d = din.readDouble();

System.out.println("Double : " + d);

din.close();    

}

catch(FileNotFoundException fe)

{

System.out.println("FileNotFoundException : " + fe);

}

catch(IOException ioe)

{

System.out.println("IOException : " + ioe);

    }

  }

}

Read float from file using Data Input Stream

import java.io.DataInputStream;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

public class ReadFloatFromFile

{

public static void main(String[] args)

{

String strFilePath = "C://FileIO//readFloat.txt";

try

{ 

FileInputStream fin = new FileInputStream(strFilePath); DataInputStream din = new DataInputStream(fin);

float f = din.readFloat();

System.out.println("float : " + f);

din.close();

}

catch(FileNotFoundException fe)

{

System.out.println("FileNotFoundException : " + fe);

}

catch(IOException ioe)

{

System.out.println("IOException : " + ioe);

     }

   }

}