Do you want to know how to develop your skillset to become a Java Rockstar?

Subscribe to our newsletter to start Rocking right now!

To get you started we give you our best selling eBooks for FREE!

 

1. JPA Mini Book

2. JVM Troubleshooting Guide

3. JUnit Tutorial for Unit Testing

4. Java Annotations Tutorial

5. Java Interview Questions

 

and many more ....

 

Receive Java & Developer job alerts in your Area

I have read and agree to the terms & conditions

 

TreeMap Iterator example

Bipartite Graph

With this example we are going to demonstrate how to obtain a TreeMap Iterator, that is an iterator over the key value pairs of the TreeMap. The TreeMap API provides methods to get an Iterator. In short, to obtain a TreeMap Iterator you should: Create a new TreeMap. Populate the map with elements, with put(K key, V value) API method ...

Read More »

Obtain tail map from TreeMap example

Bipartite Graph

This is an example of how to obtain a tail map from a TreeMap. The TreeMap API provides methods for this operation. Obtaining a tail map from a TreeMap implies that you should: Create a new TreeMap. Populate the map with elements, with put(K key, V value) API method of TreeMap. Invoke tailMap(Object fromKey) API method of TreeMap. It returns ...

Read More »

Obtain sub Map from TreeMap example

Bipartite Graph

In this example we shall show you how to obtain a sub Map from a TreeMap. The TreeMap API provides methods for this operation. To obtain a sub Map from a TreeMap one should perform the following steps: Create a new TreeMap. Populate the map with elements, with put(K key, V value) API method of TreeMap. Invoke subMap(Object fromKey, Object ...

Read More »

Get size of TreeMap example

Bipartite Graph

With this example we are going to demonstrate how to get the size of a TreeMap, that is the number of key value pairs that the TreeMap contains. In short, to get the size of a TreeMap you should: Create a new TreeMap. Populate the map with elements, with put(K key, V value) API method of TreeMap. Invoke size() API ...

Read More »

Get Set view of TreeMap keys example

Bipartite Graph

This is an example of how to get a Set view of the TreeMap keys. Getting a Set view of the TreeMap keys implies that you should: Create a new TreeMap. Populate the map with elements, with put(K key, V value) API method of TreeMap. Invoke keySet() API method of TreeMap. The method returns a Set of all the keys ...

Read More »

Obtain lowest and highest keys from TreeMap example

Bipartite Graph

In this example we shall show you how to obtain the lowest and highest keys from a TreeMap. The TreeMap API provides methods for these operations. To obtain the lowest and highest keys from a TreeMap one should perform the following steps: Create a new TreeMap. Populate the map with elements, with put(K key, V value) API method of TreeMap. ...

Read More »

Obtain head Map from TreeMap example

Bipartite Graph

With this example we are going to demonstrate how to obtain a head Map from a TreeMap. In short, to obtain a head Map from a TreeMap you should: Create a new TreeMap. Populate the map with elements, with put(K key, V value) API method of TreeMap. Invoke headMap(K toKey) API method of TreeMap, with a specified key as parameter. ...

Read More »

Check value existence in TreeMap example

Bipartite Graph

This is an example of how to check a value existence in a TreeMap in Java. Checking if a value exists in a TreeMap implies that you should: Create a new TreeMap. Populate the map with elements, with put(K key, V value) API method of TreeMap. Invoke containsValue(Object value) API method of TreeMap. The method returns true if this map ...

Read More »

Check key existence in TreeMap example

Bipartite Graph

In this example we shall show you how to check a key existence in a TreeMap. The TreeMap API provides methods for this operation. To check a key existence in a TreeMap one should perform the following steps: Create a new TreeMap. Populate the map with elements, with put(K key, V value) API method of TreeMap. Invoke containsKey(Object key) API ...

Read More »

Remove mapping from LinkedHashMap example

Bipartite Graph

With this example we are going to demonstrate how to remove mapping from a LinkedHashMap, that is removing a key value pair from a LinkedHashMap. In short, to remove mapping from a LinkedHashMap you should: Create a new LinkedHashMap. Populate the linkedHashMap with elements, with put(K key, V value) API method of LinkedHashMap. Invoke remove(Object key) API method of LinkedHashMap. ...

Read More »