Java EnumMap - get() Method
The java.util.EnumMap.get() method returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.
A return value of null does not necessarily indicate that the map contains no mapping for the key; it's also possible that the map explicitly maps the key to null.
Syntax
public V get(Object key)
Here, V is the type of value maintained by the container.
Parameters
key |
Specify the key whose associated value is to be returned. |
Return Value
Returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.
Exception
NA
Example:
In the example below, the java.util.EnumMap.get() method returns the value to which the specified key is mapped in the given EnumMap.
import java.util.*;
public class MyClass {
//creating an enum
public enum weekday{
MON, TUE, WED, THU, FRI
}
public static void main(String[] args) {
//creating EnumMap
EnumMap<weekday,Integer> MyMap =
new EnumMap<weekday,Integer>(weekday.class);
//associate values in MyMap
MyMap.put(weekday.MON, 1);
MyMap.put(weekday.TUE, 2);
MyMap.put(weekday.WED, 3);
MyMap.put(weekday.THU, 4);
MyMap.put(weekday.FRI, 5);
//printing mapped value of specified key
System.out.println("MON is mapped to: " + MyMap.get(weekday.MON));
System.out.println("WED is mapped to: " + MyMap.get(weekday.WED));
System.out.println("FRI is mapped to: " + MyMap.get(weekday.FRI));
}
}
The output of the above code will be:
MON is mapped to: 1 WED is mapped to: 3 FRI is mapped to: 5
❮ Java.util - EnumMap
