Java : DateTime - Exercises and Solution

1. Write a Java program to count the number of days between two given years

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2. Write a Java program to print LocalDate yyyy-MM-dd

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3. Write a Java program to print LocalTime HH:mm:ss

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4. Write a Java program to print LocalTime and LocalDate yyyy-MM-dd HH:mm:ss

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5. Write a Java program to print ZonedDateTime E MMM yyyy HH:mm:ss.SSSZ

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6. Write a Java program to print OffsetTime HH:mm:ss,Z

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7. Write a Java program to display combine local date and time in a single object

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8. Write a Java program to display current date without time and current time without date

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9. Write a Java program to calculate the difference between two dates in days

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10. Write a Java program to get seconds since 1970

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11. Write a Java program to convert a unix timestamp to date

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12. Write a Java program to extract date, time from the date string

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13. Write a Java program to get today's date at midnight time

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14. Write a Java program to get the next and previous Friday

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15. Write a Java program to calculate your age

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16. Write a Java program to compute the difference between two datetime (Hours, Minutes, Milliseconds, Seconds and Nanoseconds)

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17. Write a Java program to compute the difference between two dates (Years, Months, Days)

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18. Write a Java program to convert a string to date

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19. Write a Java program to display the date time information before some hours and minutes from current date time

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20. Write a Java program to get the information of a given time

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21. Write a Java program to get the information of current/given month

  • Current Month of Number : 6
  • Number of Days in Month : 30
  • Maximum Number of Days in Month : 30
  • First Month of the Quarter : APRIL
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22. Write a Java program to get the information of current/given year

  • Current Year : 2001
  • Is Current Year or leap Year ? false
  • Number of Days in the year : 365 days
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23. Write a Java program to display the dates in the specified formats

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24. Write a Java program to get the months remaining in the year

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25. Write a Java program to get the dates 10 days before and after today

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26. Write a Java program to get the current time in all the available time zones

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27. Write a Java program to get current timestamp

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28. Write a Java program to get year and months between two dates

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29. Write a Java program to get a date before and after 1 year compares to the current date

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30. Write a Java program to get a date after 2 weeks

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31. Write a Java program to add some hours to the current time

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32. Write a Java program to get the current local time

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33. Write a Java program to get a day of the week of a specific date

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34. Write a Java program to get localized day in week name

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35. Write a Java program to get Current Locale day in week name

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36. Write a Java program to get the number of days of a month

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37. Write a Java program to get the name of the first and last day of a month

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38. Write a Java program to calculate the first and last day of each week

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39. Write a Java program to get the last date of the month

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40. Write a Java program to get the last day of the current month

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41. Write a Java program to get current full date and time

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42. Write a Java program to get the current time in New York

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43. Write a Java program to get the minimum value of year, month, week, date from the current date of a default calendar

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44. Write a Java program to get the maximum value of the year, month, week, date from the current date of a default calendar

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45. Write a Java program to get and display information (year, month, day, hour, minute) of a default calendar

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46. Write a Java program to create a Date object using the Calendar class

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47. Write a Java Program to Generate Month Calendar of Any Year

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48. Write a Java Program to Generate One Year Calendar

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49. Write a Java Program to Decrement a Month using the Calendar Class

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50. Write a Java Program to Increment a Month using the Calendar Class

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51. Write a Java Program to Get individual components of the current time

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52. Write a Java Program to Compare time using equals() method

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53. Write a Java Program to Compare time using compareTo() method

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54. Write a Java Program to Add years to the current date

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55. Write a Java Program to Add months to the current date

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56. Write a Java Program to Subtract days from the current date

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57. Write a Java Program to Add days to the current date

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58. Write a Java Program to Get the current day number of a month using the get() method of Calendar class

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59. Write a Java Program to Get the current year using the get() method of Calendar class

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60. Write a Java Program to Print the current date-time using Calendar class

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61. Write a Java Program to Create a LocalDate object from the object of Date class

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62. Write a Java Program to Parse individual components of date from the current date

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63. Write a Java Program to Parse individual components of date from a string

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64. Write a Java Program to Compare dates using the Date.equals() method

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65. Write a Java Program to Compare dates using Date.compareTo() method

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66. Write a Java Program to Get a date from milliseconds using the Date.setTime() method

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67. Write a Java Program to Get a date from milliseconds using Date() constructor

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68. Write a Java Program to Get milliseconds from the specified date

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69. Write a Java Program to Convert 'java.util.Date' into 'java.sql.Date'

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70. Write a Java Program to Get current system date and time in Java

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71. Write a Java Program to get elapsed time in seconds and milliseconds

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