Employee.java

package RandomFileAccess;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;


public class Employee 
{
	 public Employee() {}

	   public Employee(String n, double s, 
	      int year, int month, int day)
	   {  
	      name = n;
	      salary = s;
	      GregorianCalendar calendar
	         = new GregorianCalendar(year, month - 1, day);
	         // GregorianCalendar uses 0 for January
	      hireDay = calendar.getTime();
	   }

	   public String getName()
	   {
	      return name;
	   }

	   public double getSalary()
	   {
	      return salary;
	   }

	   public Date getHireDay()
	   {  
	      return hireDay;
	   }

	   public void raiseSalary1(double byPercent)
	   {
	      double raise = salary * byPercent / 100;
	      salary += raise;
	   }

	   public String toString1()
	   {
	      return getClass().getName()
	         + "[name=" + name
	         + ",salary=" + salary
	         + ",hireDay=" + hireDay
	         + "]";
	   }

	   /**
	      Writes employee data to a data output
	      @param out the data output
	   */
	   public void raiseSalary(double byPercent)
	   {  
	      double raise = salary * byPercent / 100;
	      salary += raise;
	   }

	   public String toString()
	   {  
	      return getClass().getName()
	         + "[name=" + name
	         + ",salary=" + salary
	         + ",hireDay=" + hireDay
	         + "]";
	   }

	   /**
	      Writes employee data to a data output
	      @param out the data output
	   */
	   public void writeData(DataOutput out) throws IOException
	   {
	      DataIO.writeFixedString(name, NAME_SIZE, out);
	      out.writeDouble(salary);

	      GregorianCalendar calendar = new GregorianCalendar();
	      calendar.setTime(hireDay);
	      out.writeInt(calendar.get(Calendar.YEAR));
	      out.writeInt(calendar.get(Calendar.MONTH) + 1);
	      out.writeInt(calendar.get(Calendar.DAY_OF_MONTH));
	   }

	   /**
	      Reads employee data from a data input
	      @param in the data input
	   */
	   public void readData(DataInput in) throws IOException
	   {
	      name = DataIO.readFixedString(NAME_SIZE, in);
	      salary = in.readDouble();
	      int y = in.readInt();
	      int m = in.readInt();
	      int d = in.readInt();
	      GregorianCalendar calendar
	         = new GregorianCalendar(y, m - 1, d);
	         // GregorianCalendar uses 0 = January
	      hireDay = calendar.getTime();
	   }

	   public static final int NAME_SIZE = 40;
	   public static final int RECORD_SIZE
	      = 2 * NAME_SIZE + 8 + 4 + 4 + 4;

	   private String name;
	   private double salary;
	   private Date hireDay;
}