EnumMap isEmpty() in Java

isEmpty(): This method is available in java.util.EnumMap class of Java.

Syntax:

boolean java.util.AbstractMap.isEmpty()

This method returns true if this map contains no key-value mappings.

Parameters: NA

Returns: true if this map contains no key-value mappings.

Exceptions: NA

Approach

Java

import java.util.EnumMap;

public class EnumMapisEmpty {

    public enum Colour {
        RED, GREEN, YELLOW, ORANGE
    };

    public static void main(String[] args) {

        EnumMap<Colour, String> enumMap =
                 new EnumMap<Colour, String>(Colour.class);

        enumMap.put(Colour.RED, "Red");
        enumMap.put(Colour.GREEN, "Green");

        enumMap.put(Colour.YELLOW, "Yellow");
        enumMap.put(Colour.ORANGE, "Orange");

        System.out.println(enumMap.isEmpty());

    }
}

Output:

false