YouTipJava Hashmap Getordefault
# Java HashMap getOrDefault() Method
[ Java HashMap](#)
The getOrDefault() method returns the value to which the specified key is mapped, or defaultValue if this map contains no mapping for the key.
The syntax for the getOrDefault() method is:
hashmap.getOrDefault(Object key, V defaultValue)
**Note:** hashmap is an object of the HashMap class.
**Parameter Description:**
* key - the key whose associated value is to be returned
* defaultValue - the default mapping to be returned if this map contains no mapping for the key
### Return Value
Returns the value to which the specified key is mapped, or defaultValue if this map contains no mapping for the key.
### Example
The following example demonstrates the use of the getOrDefault() method:
## Example
import java.util.HashMap;
class Main {
public static void main(String[] args){
// Create a HashMap
HashMap sites =new HashMap();
// Add some elements to the HashMap
sites.put(1, "Google");
sites.put(2, "");
sites.put(3, "Taobao");
System.out.println("sites HashMap: "+ sites);
// Key mapping exists in HashMap
// Not Found - returns the default value if the key is not in the HashMap
String value1 = sites.getOrDefault(1, "Not Found");
System.out.println("Value for key 1: "+ value1);
// Key mapping does not exist in HashMap
// Not Found - returns the default value if the key is not in the HashMap
String value2 = sites.getOrDefault(4, "Not Found");
System.out.println("Value for key 4: "+ value2);
}
}
The output of the above program is:
Value for key 1: GoogleValue for key 4: Not Found
**Note:** We can use the [HashMap containsKey() method](#) to check if a specific key exists in the HashMap.
[ Java HashMap](#)