The java.util.EnumSet.range(E start_point, E end_point) method in Java is used to create an enum set with the elements defined by the specified range in the parameters.
Syntax:
Enum_set = EnumSet.range(E start_point, E end_point)
Parameters: The method accepts two parameters of the object type of enum:
- start_point: This refers to the starting element that is needed to be added to the enum set.
- end_point: This refers to the last element which is needed to be added to the enum set.
Return Value: The method returns the enum set created by the elements mentioned within the specified range.
Exceptions: The method throws two types of exception:
- NullPointerException is thrown if any of the starting or the last element is NULL.
- IllegalArgumentException is thrown when the first element is greater than the last element with respect to the position.
Below programs illustrate the use of range() method:
Program 1:
// Java program to demonstrate range() method import java.util.*;
// Creating an enum of GFG type enum GFG {
Welcome,
To,
The,
World,
of,
Geeks
} ; public class Enum_Set_Demo {
public static void main(String[] args)
{
// Creating an EnumSet
EnumSet<GFG> e_set;
// Input the values using range()
e_set = EnumSet.range(GFG.The, GFG.Geeks);
// Displaying the new set
System.out.println( "The enum set is: " + e_set);
}
} |
Output:
The enum set is: [The, World, of, Geeks]
Program 2:
// Java program to demonstrate range() method import java.util.*;
// Creating an enum of CARS type enum CARS {
RANGE_ROVER,
MUSTANG,
CAMARO,
AUDI,
BMW
} ; public class Enum_Set_Demo {
public static void main(String[] args)
{
// Creating an EnumSet
EnumSet<CARS> e_set;
// Input the values using range()
e_set = EnumSet.range(CARS.RANGE_ROVER, CARS.CAMARO);
// Displaying the new set
System.out.println( "The enum set is: " + e_set);
}
} |
Output:
The enum set is: [RANGE_ROVER, MUSTANG, CAMARO]
Article Tags :