Using the built-in enumeration methods: values( ) : enum methods « Data Type « Java Tutorial

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Java Tutorial » Data Type » enum methods

2. 44. 3. Using the built-in enumeration methods: values( )

All enumerations automatically contain two predefined methods: values( ) and valueOf( ).

public static enum-type[ ] values( )
public static enum-type valueOf(String str)

The values( ) method returns an array that contains a list of the enumeration constants.

The valueOf( ) method returns the enumeration constant whose value corresponds to the string passed in str.


enum Week {

  Monday, Tuesday, Wednesday, Thursday, Friday, Saturaday, Sunday

}



public class MainClass {

  public static void main(String args[]) {

    System.out.println("Here are all Week constants");



    // use values()

    Week allWeek[] = Week.values();

    for (Week aday : allWeek) {

      System.out.println(aday);

    }



  }

}

Here are all Week constants
Monday
Tuesday
Wednesday
Thursday
Friday
Saturaday
Sunday

2. 44. enum methods
	2. 44. 1.	Obtaining all ordinal values using ordinal()
	2. 44. 2.	compareTo() and equals() for enum data type
	2. 44. 3.	Using the built-in enumeration methods: values( )
	2. 44. 4.	Using valueOf()
	2. 44. 5.	Switch statement with enum
	2. 44. 6.	Adding Members to an Enumeration Class
	2. 44. 7.	Use the built-in enumeration methods.
	2. 44. 8.	Use an enum constructor, instance variable, and method.
	2. 44. 9.	Demonstrate ordinal(), compareTo(), and equals().

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