Created
November 12, 2014 08:59
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public class Calendar | |
{ | |
private int[] monthDay = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; | |
private String[] monthName = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; | |
private int day, month, year; | |
private int dayName; | |
public Calendar(int d, int m, int y) | |
{ | |
year = y; | |
month = m; | |
day = d; | |
} | |
public boolean leapYear(int year) | |
{ | |
boolean ans = false; | |
if(year % 4 == 0) | |
{ | |
ans = true; | |
} | |
if(year % 100 == 0) | |
{ | |
ans = false; | |
} | |
if(year % 400 == 0) | |
{ | |
ans = true; | |
} | |
return ans; | |
} | |
public void incrementDate() | |
{ | |
day = day + 1; | |
if(month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) | |
{ | |
if(day > 31) | |
{ | |
month = month + 1; | |
day = 1; | |
} | |
} | |
if(month == 4 || month == 6 || month == 9 || month == 11) | |
{ | |
if(day > 30) | |
{ | |
month = month + 1; | |
day = 1; | |
} | |
} | |
if(month == 2) | |
{ | |
if (leapYear(year)) | |
{ | |
if(day > 29) | |
{ | |
month = month + 1; | |
day = 1; | |
} | |
} | |
else | |
{ | |
if(day > 28) | |
{ | |
month = month +1; | |
day = 1; | |
} | |
} | |
} | |
if(month > 12) | |
{ | |
month = 1; | |
year = year + 1; | |
} | |
} | |
public void decrementDate() | |
{ | |
day = day - 1; | |
if(day < 1) | |
{ | |
month = month - 1; | |
if(month == 1 || month == 3 || month == 5 || month == 7 || month == 8 || month == 10 || month == 12) | |
{ | |
day = 31; | |
} | |
if(month == 4 || month == 6 || month == 9 || month == 11) | |
{ | |
day = 30; | |
} | |
if(month == 2) | |
{ | |
if (leapYear(year)) | |
{ | |
day = 29; | |
} | |
else | |
{ | |
day = 28; | |
} | |
} | |
if(month < 1) | |
{ | |
month = 12; | |
year = year - 1; | |
day = 31; | |
} | |
} | |
} | |
public String dayName(n); | |
{ | |
String[] days = { | |
"Monday", | |
"Tuesday", | |
"Wednesday", | |
"Thursday", | |
"Friday", | |
"Saturday", | |
"Sunday" | |
} | |
return days[n]; | |
} | |
} |
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