Java 8 – How to get Year, Month and Day fields from LocalDate ?

July 29, 2022 SJ Java 8, Java 8 Date/Time 0

In this article, we will learn how to get year, month and day fields from LocalDate and Calendar using different methods provided in Java 1.8 version

1. Get Year, Month and Day fields from LocalDate

  • Sometimes, we need specific fields from LocalDate like Year or Month or Day instead of whole Date
  • To get those fields separately, we can use below listed methods of LocalDate
    • getYear() – returns Year field from LocalDate
    • getMonth() – returns Month in words field from LocalDate
    • getMonthValue() – returns Month in number field from LocalDate
    • getDayOfMonth() – returns Day of Month field from LocalDate
    • getDayOfWeek() – returns Day of Week field from LocalDate
    • getDayOfYear() – returns Day of Year field from LocalDate
    • lengthOfMonth() – returns Number of Days in the current Month from LocalDate
    • lengthOfYear() – returns Number of Days in the current Year from LocalDate
    • isLeapYear() – returns whether current year is leap year or not from LocalDate
  • Finally, print above retrieved values to the console

GetFieldsFromLocalDate.java

package in.bench.resources.java8.localdate.examples;

import java.time.DayOfWeek;
import java.time.LocalDate;
import java.time.Month;

public class GetFieldsFromLocalDate {

	public static void main(String[] args) {

		// get current System Date
		LocalDate localDate = LocalDate.now();
		System.out.println("Current System Date is = " + localDate);


		// 1. get year
		int year = localDate.getYear();
		System.out.println("\nYear is = " + year);


		// 2. get month in words
		Month month = localDate.getMonth();
		System.out.println("Month in words is = " + month);


		// 3. get month in number
		int monthValue = localDate.getMonthValue();
		System.out.println("Month in number is = " + monthValue);


		// 4. get day of month
		int day = localDate.getDayOfMonth();
		System.out.println("Day of Month is = " + day);


		// 5. get day of week
		DayOfWeek dayOfWeek = localDate.getDayOfWeek();
		System.out.println("Day of Week is = " + dayOfWeek);


		// 6. get day of year
		int dayOfYear = localDate.getDayOfYear();
		System.out.println("Day of Year is = " + dayOfYear);


		// 7. get length of month
		int lengthOfMonth = localDate.lengthOfMonth();
		System.out.println("Length of Month is = " + lengthOfMonth);


		// 8. get lengthOfMonth
		int lengthOfYear = localDate.lengthOfYear();
		System.out.println("Length of Year is = " + lengthOfYear);


		// 9. check leap year ?
		boolean isLeapYear = localDate.isLeapYear();
		System.out.println("Leap Year ? = " + isLeapYear);
	}
}

Output:

Current System Date is = 2022-07-28

Year is = 2022
Month in words is = JULY
Month in number is = 7
Day of Month is = 28
Day of Week is = THURSDAY
Day of Year is = 209
Length of Month is = 31
Length of Year is = 365
Leap Year ? = false

2. Get Year, Month and Day fields from Calendar

  • Prior to Java 1.8 version, we have to deal with Date and Calendar for Date/Time handling
  • So if we need specific fields from Calendar like Year or Month or Day instead of whole Date, we can use get() method of Calendar passing different constants as listed below,
    • get(Calendar.YEAR) – returns Year field from Calendar
    • get(Calendar.MONTH) – returns Month field from Calendar
    • get(Calendar.DAY_OF_MONTH) – returns Day of Month field from Calendar
    • get(Calendar.DAY_OF_WEEK) – returns Day of Week field from Calendar (Sunday being 1 & Saturday being 7)
    • get(Calendar.DAY_OF_YEAR) – returns Day of Year field from Calendar
  • Finally, print above retrieved values to the console

GetFieldsFromCalendar.java

package in.bench.resources.java8.localdate.examples;

import java.util.Calendar;
import java.util.Date;

public class GetFieldsFromCalendar {

	public static void main(String[] args) {

		// get current System Date using Date/Calendar
		Date today = new Date();
		Calendar calendar = Calendar.getInstance();
		calendar.setTime(today);
		System.out.println("Current System Date/Time is = " + calendar.getTime());


		// 1. get year
		int year = calendar.get(Calendar.YEAR);
		System.out.println("\nYear is = " + year);


		// 2. get month
		int month = calendar.get(Calendar.MONTH);
		System.out.println("Month is = " + month);


		// 3. get day of month
		int day = calendar.get(Calendar.DAY_OF_MONTH);
		System.out.println("Day of Month is = " + day);


		// 4. get day of week (Sunday=1 and Saturday=7
		int dayOfWeek = calendar.get(Calendar.DAY_OF_WEEK);
		System.out.println("Day of Week is = " + dayOfWeek);


		// 5. get day of year
		int dayOfYear = calendar.get(Calendar.DAY_OF_YEAR);
		System.out.println("Day of Year is = " + dayOfYear);
	}
}

Output:

Current System Date/Time is = Thu Jul 28 09:31:32 IST 2022

Year is = 2022
Month is = 6
Day of Month is = 28
Day of Week is = 5
Day of Year is = 209

Related Articles:

References:

Happy Coding !!
Happy Learning !!

Java 8 – How to form LocalDate passing Year, Month and Day fields ?
Java 8 - How to get current Date and Time ?

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