Java .internalGet()

The .internalGet() method is a protected method used to retrieve the value of a field from a Calendar instance. In other words, it takes a field as input and returns its corresponding value. This method is generally used within the Calendar class or its sub classes.

Syntax

myCalendar.internalGet(int field)

The .internalGet() method accepts a field constant from the Calendar class (e.g. YEAR) as its argument and returns the corresponding value.

Example

In this example, the InternalGetExample class inherits the GregorianCalendar. The code first instantiates a new object of type InternalGetExample with the current date which uses the Gregorian calendar system.

Note: There are multiple calendar systems that Calendar.getInstance() provides depending on the locale. These include GregorianCalendar, BuddhistCalendar, and JapaneseImperialCalendar.

import java.util.GregorianCalendar;

public class InternalGetExample extends GregorianCalendar{
  public static void main(String[] args) {

  // Create new instance with current date and time
  InternalGetExample myCalendar = new InternalGetExample();

  // Get the current year, and month
  int year = myCalendar.internalGet(YEAR);

  int month = myCalendar.internalGet(MONTH);

  System.out.println("Current Year: " + year);

  System.out.println("Current Month: " + month);

  }
}

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This output will vary depending on the current date, it will generally look like the following:

Current Year: 2023
Current Month: 9

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