Lab 12-5-2005 (1) Using "this"

package lab;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;

public class DateFourthTry {
private String month;
private int day;
private int year;
public String toString() {
return (month + " " + day + ", " + year);
}

public void writeOutput() {
System.out.println(month + " " + day + ", " + year);
}

public boolean equals(DateFourthTry otherDate) {
return ( (month.equals(otherDate.month))
&& (day == otherDate.day) && (year == otherDate.year));
}

public boolean precedes(DateFourthTry otherDate) {
return ( (year < otherDate.year) ||
(year == otherDate.year && getMonth() < otherDate.getMonth()) ||
(year == otherDate.year && month.equals(otherDate.month)
&& day < otherDate.day));
}

public void setDate(int Month, int day, int year) {
this.month = monthString(Month);
this.day = day;
this.year = year;
}

public String monthString(int month) {
switch (month) {
case 1:
return "January";
case 2:
return "February";
case 3:
return "March";
case 4:
return "April";
case 5:
return "May";
case 6:
return "June";
case 7:
return "July";
case 8:
return "August";
case 9:
return "September";
case 10:
return "October";
case 11:
return "November";
case 12:
return "December";
default:
System.out.println("Fatal Error");
System.exit(0);
return "Error";
}
}

public void readInput() throws IOException {
BufferedReader keyboard = new BufferedReader(new InputStreamReader(System.
in));
System.out.println("Enter month, day, and year.");
System.out.println("Do not use a comma.");
month = keyboard.readLine();
day = keyboard.read();
year = keyboard.read();
}

public int getDay() {
return day;
}

public int getYear() {
return year;
}

public int getMonth() {
if (month.equalsIgnoreCase("January"))
return 1;
else if (month.equalsIgnoreCase("February"))
return 2;
else if (month.equalsIgnoreCase("March"))
return 3;
else if (month.equalsIgnoreCase("April"))
return 4;
else if (month.equalsIgnoreCase("May"))
return 5;
else if (month.equals("June"))
return 6;
else if (month.equalsIgnoreCase("July"))
return 7;
else if (month.equalsIgnoreCase("August"))
return 8;
else if (month.equalsIgnoreCase("September"))
return 9;
else if (month.equalsIgnoreCase("October"))
return 10;
else if (month.equalsIgnoreCase("November"))
return 11;
else if (month.equalsIgnoreCase("December"))
return 12;
else {
System.out.println("Fatal Error");
System.exit(0);
return 0;
}
}
}

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package lab;

public class EqualsAndToStringDemo {
public static void main(String[] args) {
DateFourthTry date1 = new DateFourthTry(),
date2 = new DateFourthTry();
date1.setDate(6, 17, 1882);
date2.setDate(6, 17, 1882);
if (date1.equals(date2))
System.out.println(date1 + " equals " + date2);
else
System.out.println(date1 + " does not equal " + date2);
date1.setDate(7, 28, 1750);
if (date1.precedes(date2))
System.out.println(date1 + " comes before " + date2);
else
System.out.println(date2 + " comes before or is equal to "
+ date1);
}
}