Java.util.EnumMap.get() Method
Advertisements
Description
The java.util.EnumMap.get(Object key) method returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.
Declaration
Following is the declaration for java.util.EnumMap.get() method
public V get(Object key)
Parameters
key − the key whose associated value is to be returned
Return Value
This method returns the value to which the specified key is mapped, or null if this map contains no mapping for the key.
Exception
NA
Example
The following example shows the usage of java.util.EnumMap.get() method.
Live Demopackage com.tutorialspoint; import java.util.*; public class EnumMapDemo { // create an enum public enum Numbers { ONE, TWO, THREE, FOUR, FIVE }; public static void main(String[] args) { EnumMap<Numbers, String> map = new EnumMap<Numbers, String>(Numbers.class); // associate values in map1 map.put(Numbers.ONE, "1"); map.put(Numbers.TWO, "2"); map.put(Numbers.THREE, "3"); map.put(Numbers.FOUR, "4"); // print the map System.out.println(map); // get the value for Numbers.ONE String value = map.get(Numbers.ONE); // print the result System.out.println("Numbers.ONE value:" + value); System.out.println("Numbers.FIVE value:" + map.get(Numbers.FIVE)); } }
Let us compile and run the above program, this will produce the following result −
{ONE=1, TWO=2, THREE=3, FOUR=4} Numbers.ONE value:1 Numbers.FIVE value:null
java_util_enummap.htm
Advertisements