Xem Nhiều 3/2023 #️ How To Create Java.util.dictionary Class # Top 9 Trend | Trucbachconcert.com

Xem Nhiều 3/2023 # How To Create Java.util.dictionary Class # Top 9 Trend

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Dictionary in Java is the abstract class that is the parent of any class which uses the key-value pair relationship. In this blog, we will learn more about the Dictionary class in Java and get familiar with the different methods. Below are the topics covered in this blog-

What is Dictionary in Java?

Dictionary is an abstract class representing a key/value storage repository that operates like Map. You can store the value in a Dictionary object and once it is stored, you can retrieve it by using its key.


public abstract class Dictionary extends Object

Dictionary() constructor

Methods of util.Dictionary Class 

Let us have a look at a few different methods of Dictionary Class.

Check the size of the dictionary

size() : java.util.Dictionary.size() returns the number of key-value pairs in the Dictionary

Syntax: public abstract int size()

Add/ put values in dictionary

put(K key, V value) : java.util.Dictionary.put(K key, V value) adds key-value pair to the dictionary

Syntax: public abstract V put(K key, V value)

Return values present in the dictionary

elements() : java.util.Dictionary.elements() returns value representation in dictionary

Syntax: public abstract Enumeration elements()

Get method to fetch the values mapped with the key

get(Object key) : java.util.Dictionary.get(Object key) returns the value that is mapped with the key in the dictionary

Syntax: public abstract V get(Object key)

Check if dictionary is empty

isEmpty() : java.util.Dictionary.isEmpty() checks whether the dictionary is empty or not.

Syntax: public abstract boolean isEmpty()

Return true, if there is no key-value relation in the dictionary; else return false.

Removing key value from dictionary in Java

remove(Object key) : java.util.Dictionary.remove(Object key) removes the key-value pair mapped with the key.

Syntax: public abstract V remove(Object key)

Implementation of Dictionary in Java

import java.util.*; public class My_Class { public static void main(String[] args) { Dictionary edu = new Hashtable(); edu.put("1000", "Edureka"); edu.put("2000", "Platfrom"); for (Enumeration i = edu.elements(); i.hasMoreElements();) { System.out.println("Value in Dictionary : " + i.nextElement()); } System.out.println("nValue at key = 3000 : " + edu.get("2000")); System.out.println("Value at key = 1000 : " + edu.get("2000")); System.out.println("nThere is no key-value pair : " + edu.isEmpty() + "n"); for (Enumeration k = edu.keys(); k.hasMoreElements();) { System.out.println("Keys in Dictionary : " + k.nextElement()); } System.out.println("nRemove : " + edu.remove("1000")); System.out.println("Check the value of removed key : " + edu.get("1000")); System.out.println("nSize of Dictionary : " + edu.size()); } }

Java Dictionary Class Example

key-value pair mapped in the dictionary.



The get() method takes the key as the argument and returns the value that is mapped to it. If no value is mapped with the given key, it simply returns null.

Syntax: public abstract V get(Object key)

Parameters: key – key whose mapped value we want

Return: value mapped with the argument key.




The elements() method is used to represent all the values present inside the Dictionary. It is usually used with loop statements as they can then represent one value at a time.

Syntax: public abstract Enumeration elements()

Return: value enumeration in the dictionary.




As the elements() method returns the enumerated values present inside the dictionary; similarly, the keys() method returns the enumerated keys present inside the dictionary.

Syntax: public abstract Enumeration keys()

Return: The key enumeration in the dictionary.



The isEmpty() method returns a boolean value, which is true if there are no key-value pairs present inside the Dictionary. If even any single key-value pair resides inside the dictionary, it returns false.

Syntax: public abstract boolean isEmpty()

Return: It returns true if there is no key-value relation in the dictionary; else false.




The remove() method takes the key as its argument, and it simply removes both the key and the value mapped with it from the dictionary.

Syntax: public abstract V remove(Object key)

Parameters: key: a key to be removed

Return: The key enumeration in the dictionary.



The size() method returns the total number of key-value pairs present inside the Dictionary.

Syntax: public abstract int size()

Return: It returns the no. of key-value pairs in the Dictionary.

The following program code is an example of using Dictionaries in Java.

import java.util.Dictionary; import java.util.Enumeration; import java.util.Hashtable; public class Dict { public static void main(String[] args) { Dictionary dictionary = new Hashtable(); dictionary.put("Apple", "A fruit"); dictionary.put("Ball", "A round shaped toy"); dictionary.put("Car", "A four wheeler vehicle designed to accomodate usually four people"); dictionary.put("Dog", "An animal with four legs and one tail"); System.out.println("nApple: " + dictionary.get("Apple")); System.out.println("Dog: " + dictionary.get("Dog")); System.out.println("Elephant: " + dictionary.get("Elephant")); System.out.println(); for (Enumeration i = dictionary.elements(); i.hasMoreElements();) { System.out.println("Values contained in Dictionary : " + i.nextElement()); } System.out.println(); for (Enumeration k = dictionary.keys(); k.hasMoreElements();) { System.out.println("Keys contianed in Dictionary : " + k.nextElement()); } System.out.println("nThe dictionary is empty? " + dictionary.isEmpty()); dictionary.remove("Dog"); System.out.println("nDog: " + dictionary.get("Dog")); System.out.println("nSize of Dictionary : " + dictionary.size()); } }

See the output.

Finally, Java Dictionary Class Example Tutorial is over.

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How To Create A Custom Animation In Powerpoint

Animation effects in PowerPoint provide smooth visual transitions between different states of your presentation by moving objects in place or around the slide canvas. Motion evokes the most basic human instincts and naturally attracts the attention of the eye. Used well, animation makes the viewing experience engaging and dynamic.

The main idea of using animations is not just to make content interactive and entertaining, but also to draw viewers’ attention to the key points and therefore express ideas in a more memorable way.

There are plenty of animations in Microsoft PowerPoint that can be applied to text, shapes or pictures. Some of the most commonly used effects are: Appear, Fade in, Fly in, etc. Sometimes our imagination goes beyond standard PowerPoint animations, so we need to create a more complex, unique animation that no other presentation contains.

There are two ways in which a custom animation can be created:

An animation combo: multiple animations applied to one object

A custom motion path

Let’s delve deeper into both of these options, look into their variations and review some examples.

Custom Animation Combo

A single object on a PowerPoint slide may have many animation effects applied at the same time. Adjusting the settings for each effect will create a combination that most likely will be a unique one.

Tip: You may also turn on Selection Pane to give distinct names to objects on a slide (Home → Select → Selection Pane).

Select an object on the slide.

A Combo-animation has now been created! After several effects are assigned to a single object, you can see them stacked at the Animation Pane. When you select the object on a slide, all its animations will be automatically selected in the Animation Pane and the Animation gallery will indicate Multiple.

If you want the animation to repeat, e.g. an object will pulse as it moves, you can set a custom number of repeats within the same window.

Note: iSpring will read infinity value Repeat: Until End of Slide as a 1 because the conversion engine cannot calculate the length of the slide, which is important to proceed. To work around this, set Repeat to any numeric value, e.g. 99, it will imitate a very long repeated action.

Custom Motion Path

For general purposes, a Fly in animation can be used. It will move an object to the final point from any side.However, we cannot control the starting point and trajectory using this simple animation. Applying a motion path will give you full control over object movements around the slide canvas to create precisely what you want.

You can make objects move along the path. To achieve that, do the following:

Select an object.

At the very bottom of the list you will see motion paths. Pick the one that suits your idea.

Transform the path or Edit Points to make fine adjustments. If you choose Custom Path, you can draw freeform. When you are done, press the Esc button.

The green spot will show the initial state of the animation and the red spot represents the final position. If you select the path itself, you will see a ghost object as shown on the picture above.

You can also combine path animations with other animation effects e.g. plane may rotate as it follows the circle path.

Check out the sample presentation that we made for you.

Download PPT and play around with the animation settings.

Convert with iSpring

Now you can energize your presentation’s content by applying fluid visual transitions, making it personal and unique. Liven up your content with custom animations and iSpring will take care of converting them into Web formats. Convert your presentation with one of iSpring’s desktop authoring tools and enjoy perfect reproduction of all effects on any device.

iSpring Suite

How To Create A Strong Profile Statement For Your Resume

A strongly worded resume can bring you a good job and a high salary. The difficult part of creating your resume is actually graduating, volunteering and working in order to fill it in with experience. However, none of this matters if you create a bad resume.

What does it take to create a good resume?

The first thing that everyone is going to read on your resume is your profile statement. It is a short introductory paragraph of 3-4 sentences that summarizes you and your experience.

What Profile Statement isn’t?

First of all, let’s see what you should not write as a profile statement in your resume:

Details about your private life such as family, hobbies, etc.

Boasting about your skills – this is seen as highly unprofessional

Too much filler words – avoid words such as however, therefore, on the other hand, etc.

Long sentences and long words – short and informative sentences work the best and hold the attention of the people who will read the resume.

As you can see, it should be conscise. Furthermore, it should also be adapted to the jobs that you are applying in order to catch employer’s attention.

Add the skills in which you excel

Every job has some aspects which you are not good and those which you can do very well. The second option should be inserted into the opening statement.

The effect that you want to achieve with this sentence is to make you stand out in the sea of other candidates. You will agree that the first sentence is somewhat generic and this is exactly the reason why you should put some creativity into the second one.

Therefore, you should put something that makes you different from other candidates. Following the example from above, the second sentence should look like this:

“Specializations include tech blogging, social media marketing content combined with infographics”

On the other hand, the bad example of this second sentence would look like this:

“I love to write about technology and I know how to create beautiful infographics and write content for “

Once again, the difference is more than obvious – the first sentence wins.

Add your skills and experience

“A professional copywriter with more than 5 years experience in writing web content at Aussiewriter“I am an excellent copywriter and I worked hard for more than 5 years in order to gain the experience needed to get the adequate qualification for this extremely important and interesting job…” content writing service”

The first thing to do when it comes to writing statements is adding your skills and combine them with experience that you’ve had so far. Look at this sentence as an example sentence:

Now look at this sentence which illustrates a bad example:

Which one sounds more professional? You need not be a professional writer in order to understand the difference and see that the second one looks like ordinary chit-chat with an acquaintance of yours.

If you do not have experience in the job, try stating your education and what you learned the best there.

“Seeking to improve your blog with and with my unique style and voice bring to the higher conversion rates”

Add how you will fit in the company

The third part is the most difficult one and will require you to brainstorm. First of all, you need to see what specific tasks you are going to do if you are hired for the company. Next, you need to see whether your skills can contribute to those tasks and how can you use them in order to improve them for the better.

After all of this has been recognized, you need to brainstorm the ideas for improving the company’s functionality. The third sentence must be different for all of the jobs that you are applying to because not all of them will require the same skills.

Scott Ragin is a social media specialist and blogger working in multi-channel marketing, content strategy and connecting social media to business initiative. He loves guiding other people through their marketing practice and shares his ideas as a blogger. Feel free to contact him at .

Once you got these three important parts, you can focus on finishing up the rest of the resume. The rest of it should be written well but it exists for purely informational reasons, while the profile statement is sort of a copy that will sell you and your skills to the employer.

To sum up, whenever we apply for a job we need to devote extra time to writing a high-quality profile statement in order to impress the employer.

It is not a difficult thing to do and anyone can do it by following the three steps that are explained here. This pattern is proven to have worked many times before – one sentence about your professional background, one sentence about your specific skills and one sentence about the way you can help that specific company.

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