Given the following Month class in Java, write exception errors for the following error conditions: -A number less than 1 or greater than 12 is given for the month number. -An invalid string is given for the name of the month.

Modify the Month class so that it throws the appropriate exception when either of these errors occur. Then demonstrate the classes in a new program.

public class Month { private int monthNumber;

/** The No-arg constructor initializes the object to month #1. */

public Month() { monthNumber = 1; }

/** Constructor @param m The month number to initialize the object to. */

public Month(int m) { if (m < 1 || m > 12) monthNumber = 1; else monthNumber = m; }

/** Constructor @param name The name of the month to initialize the object to. */

public Month(String name) { if (name.equalsIgnoreCase("january")) monthNumber = 1; else if (name.equalsIgnoreCase("february")) monthNumber = 2; else if (name.equalsIgnoreCase("march")) monthNumber = 3; else if (name.equalsIgnoreCase("april")) monthNumber = 4; else if (name.equalsIgnoreCase("may")) monthNumber = 5; else if (name.equalsIgnoreCase("june")) monthNumber = 6; else if (name.equalsIgnoreCase("july")) monthNumber = 7; else if (name.equalsIgnoreCase("august")) monthNumber = 8; else if (name.equalsIgnoreCase("september")) monthNumber = 9; else if (name.equalsIgnoreCase("october")) monthNumber = 10; else if (name.equalsIgnoreCase("november")) monthNumber = 11; else if (name.equalsIgnoreCase("december")) monthNumber = 12; else monthNumber = 1; }

/** The setMonthNumber method sets the month. @param m The number of the month. */

public void setMonthNumber(int m) { if (m < 1 || m > 12) monthNumber = 1; else monthNumber = m; }

/** The getMonthNumber method gets the month number. @return The number of the month. */

public int getMonthNumber() { return monthNumber; }

/** The getMonthName method gets the name of the month. @return The name of the month. */

public String getMonthName() { String name; switch (monthNumber) { case 1: name = "January"; break; case 2: name = "February"; break; case 3: name = "March"; break; case 4: name = "April"; break; case 5: name = "May"; break; case 6: name = "June"; break; case 7: name = "July"; break; case 8: name = "August"; break; case 9: name = "September"; break; case 10: name = "October"; break; case 11: name = "November"; break; case 12: name = "December"; break; default: name = "Unknown"; } return name; }

/** toString method @return A reference to a String representation of the object. */ public String toString() { return getMonthName(); } /** equals method @param month2 Another Month object. @return true if the two Month objects contain the same month, false otherwise. */ public boolean equals(Month month2) { boolean status; if (month2.getMonthNumber() == monthNumber) status = true; else status = false; return status; }

/** greaterThan method @param month2 Another Month object. @return true if the calling objects is greater than the argument, false otherwise. */ public boolean greaterThan(Month month2) { boolean status; if (monthNumber > month2.getMonthNumber()) status = true; else status = false; return status; } /** lessThan method @param month2 Another Month object. @return true if the calling objects is less than the argument, false otherwise. */ public boolean lessThan(Month month2) { boolean status; if (monthNumber < month2.getMonthNumber()) status = true; else status = false; return status; } }