TreeMap: Fetching and Removal
Explore how to manage data within a Java TreeMap. Learn to fetch values by key, retrieve smallest and largest keys or entries, remove elements, and update values conditionally using replace methods. This lesson will help you effectively manipulate TreeMap data structures.
We'll cover the following...
We'll cover the following...
Fetching an element from a TreeMap
The following methods can be used to fetch elements from a TreeMap.
Fetching the value for a particular key
We can fetch the value for a particular key using the get(Object o) method. This method will return the value of the key if the key is present. If the key is not present, it will return null.
Fetching the smallest key
As we are aware that a TreeMap ...