Lab 4-1 Create a Java Program to Stock Class package myjavaproject2;

public class Lab4_1 {

public static void main(String[] args) { // TODO Auto-generated method stub Stock stock = new Stock("ESI", "ITT Technical Institute Inc."); stock.setPreviousClosingPrice(60.0);

// Set current price stock.setCurrentPrice(65.0);

// Display stock info System.out.println("Symbol: " + stock.getSymbol); System.out.println("Name: " + stock.getName); System.out.println("Previous Closing Price: " + stock.getPreviousClosingPrice()); System.out.println("Current Price: " + stock.getCurrentPrice()); System.out.println("Price Change: " + stock.getChangePercent() * 1); } }

class Stock { String getSymbol; String getName; double previousClosingPrice; double currentPrice;

public Stock() { }

public Stock(String Symbol, String Name) { getSymbol = Symbol; getName = Name; } public String getSymbol(){ return getSymbol; } public String name(){ return getName; }

public double getChangePercent() { return (currentPrice - previousClosingPrice) / previousClosingPrice; } public double getPreviousClosingPrice() { return previousClosingPrice; } public double getCurrentPrice() { return currentPrice; } public void setCurrentPrice(double price) { currentPrice = price; } public void setPreviousClosingPrice(double price) { previousClosingPrice = price; } public void setgetSymbol(String Symbol) { getSymbol = Symbol; } public void setname(String name) { getName = name; }

}

Lab 4-2: Create a Java Program to Display a Calendar package myjavaproject2; import javax.swing.JOptionPane; public class Lab4_2 { public static String output =""; public static void main(String[] args) { // TODO Auto-generated method stub // Prompt the user to enter year String yearString = JOptionPane.showInputDialog(null, "Enter full year (i.e. 2001):", "Enter Year", JOptionPane.QUESTION_MESSAGE);

// Convert string into integer int year = Integer.parseInt(yearString);

// Prompt the user to enter month String monthString = JOptionPane.showInputDialog(null, "Enter month in number between 1 and 12:", "Enter Month", JOptionPane.QUESTION_MESSAGE);

// Convert string into integer int month = Integer.parseInt(monthString); // Print calendar for the month of the year printMonth(year, month); JOptionPane.showMessageDialog(null, output); } /** Print the calendar for a month in a year */ static void printMonth(int year, int month) { // Get start day of the week for the first date in the month int startDay = getStartDay(year, month);

// Get number of days in the month int numOfDaysInMonth = getNumOfDaysInMonth(year, month);

// Print headings printMonthTitle(year, month);

// Print body printMonthBody(startDay, numOfDaysInMonth); }

/** Get the start day of the first day in a month */ static int getStartDay(int year, int month) { // Get total number of days since 1/1/1800 int startDay1800 = 3; long totalNumOfDays = getTotalNumOfDays(year, month);

// Return the start day return (int)((totalNumOfDays + startDay1800) % 7); }

/** Get the total number of days since Jan 1, 1800 */ static long getTotalNumOfDays(int year, int month) { long total = 0;

// Get the total days from 1800 to year -1 for (int i = 1800; i < year; i++) if (isLeapYear(i)) total = total + 366; else total = total + 365;

// Add days from Jan to the month prior to the calendar month for (int i = 1; i < month; i++) total = total + getNumOfDaysInMonth(year, i);

return total; }

/** Get the number of days in a month */ static int getNumOfDaysInMonth(int year, int month) { if (month == 1 || month==3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) return 31;

if (month == 4 || month == 6 || month == 9 || month == 11) return 30;

if (month == 2) if (isLeapYear(year)) return 29; else return 28;

return 0; // If month is incorrect. }

/** Determine if it is a leap year */ static boolean isLeapYear(int year) { if ((year % 400 == 0) || ((year % 4 == 0) && (year % 100 != 0))) return true;

return false; }

/** Print month body */ static void printMonthBody(int startDay, int numOfDaysInMonth) { // Pad space before the first day of the month int i = 0; for (i = 0; i < startDay; i++) output +=" ";

for (i = 1; i <= numOfDaysInMonth; i++) { if (i < 10) output +=" " + i; else output +=" " + i;

if ((i + startDay) % 7 == 0) output += "\n"; }

output += "\n"; }

/** Print the month title, i.e. May, 1999 */ static void printMonthTitle(int year, int month) { output += " " + getMonthName(month) + ", " + year + "\n"; output += "-------------------------------------------\n"; output += " Sun Mon Tue Wed Thu Fri Sat\n"; }

/** Get the English name for the month */ static String getMonthName(int month) { String monthName = null; switch (month) { case 1: monthName = "January"; break; case 2: monthName = "February"; break; case 3: monthName = "March"; break; case 4: monthName = "April"; break; case 5: monthName = "May"; break; case 6: monthName = "June"; break; case 7: monthName = "July"; break; case 8: monthName = "August"; break; case 9: monthName = "September"; break; case 10: monthName = "October"; break; case 11: monthName = "November"; break; case 12: monthName = "December"; }

return monthName; } }