NavigableMap is a useful extension of the Map interface in Java that allows you to maintain a sorted order of keys and access them in a navigable manner. Testing code that utilizes NavigableMap can be done using various techniques such as unit tests with JUnit or using mocking frameworks like Mockito.
Here is an example of how to test code that uses NavigableMap:
import java.util.NavigableMap;
import java.util.TreeMap;
public class NavigableMapExample {
private NavigableMap map;
public NavigableMapExample() {
map = new TreeMap<>();
}
public void addItem(String key, Integer value) {
map.put(key, value);
}
public Integer getValue(String key) {
return map.get(key);
}
public static void main(String[] args) {
NavigableMapExample example = new NavigableMapExample();
example.addItem("A", 1);
example.addItem("B", 2);
System.out.println(example.getValue("A")); // Outputs: 1
}
}
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