Description: To check what the input day of week is, the programs would take three values: month, day, year. For month use 1 for January, 2 for February, and so forth. For output print 0 for Sunday, 1 for Monday, 2 for Tuesday, and so forth. Use the following formulas, for the Gregorian calendar:
y = year – (14 – month) / 12
x = y + y/4 – y/100 + y/400
m = month + 12 * ((14-month) / 12) – 2
d = (day + x + (31 * m) / 12) 7
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DayOfWeekGUI.java
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