Java: Get NavigableSet view of the keys contained in a map
Java Collection, TreeMap Exercises: Exercise-18 with Solution
Write a Java program to get a NavigableSet view of keys in a map.
Sample Solution:-
Java Code:
import java.util.*;
import java.util.Map.Entry;
public class Example18 {
public static void main(String args[]) {
// Create a tree map
TreeMap < Integer, String > tree_map1 = new TreeMap < Integer, String > ();
// Put elements to the map
tree_map1.put(10, "Red");
tree_map1.put(20, "Green");
tree_map1.put(40, "Black");
tree_map1.put(50, "White");
tree_map1.put(60, "Pink");
System.out.println("Orginal TreeMap content: " + tree_map1);
System.out.println("Orginal TreeMap content: " + tree_map1.navigableKeySet());
}
}
Sample Output:
Orginal TreeMap content: {10=Red, 20=Green, 40=Black, 50=White, 60=Pink } Orginal TreeMap content: [10, 20, 40, 50, 60]
Java Code Editor:
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Previous: Get the greatest key strictly less than the given key.
Next: Remove and get a key-value mapping associated with the least key in a map.
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Java: Tips of the Day
Difference between jar and war in Java
From Java Tips: Difference between ear jar and war files:
These files are simply zipped files using the java jar tool. These files are created for different purposes. Here is the description of these files:
- .jar files: The .jar files contain libraries, resources and accessories files like property files.
- .war files: The war file contains the web application that can be deployed on any servlet/jsp container. The .war file contains jsp, html, javascript and other files necessary for the development of web applications.
Ref: https://bit.ly/31hFDog
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