Java is a general-purpose computer programming language that is concurrent, class-based, object-oriented, and specifically designed to have as few implementation dependencies as possible

Java program to print the string without modifying exiting main method?

This is very rarely asked Java interview question.

The question is as follows:

Java program to print the string without modifying the main method and without using the static block?

Suppose you have the following java code with the main method:

 

 

Now you have to print the Sting Like this ” Hello, Akshay How Are You?”. But the condition is that you can not modify the main method, and you can not also use the static block.

The question is the very tricky java interview question. As fresher in java interview question you may face thi question. However, this question may not be asked in your interview but you this will surely be helpful to understand the Java  SE concepts.

The solution of this question is as follows:

 

 

If you know what is the meaning of System.out.print() statement is in java. When you write System.out.println() it uses the object of the System class.  out is the instance of the OutputStream class. And the println()  is the method of the OutputStream class.

So to do that you have to rewrite the System class as per given in above class.

So you can write the code like this and you can achieve the result as wanted in the question.

I hope that you like this post. If you like our articles or you have any suggestion and doubt about the post and any thing related to technology and block you can comment below.

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Switching between Scenes (Screens) in JavaFx using the FXML

There is no doubt that the JavaFX is the best framework for designing the desktop application in Java. JavaFX is the successor of the Swing framework which is still widely used.

Here we at Code Puran Brings such and very useful article series of the JavaFX tutorials. In this tutorial, we provide the handy code snippets of the JavaFX which you can implement in your projects and desktop application in Java.

In this tutorial series of the JavaFX, we are going to show that how to switch the from one scene (screen) to another in JavaFX [JavaFX Tutorial].

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The source code given below demonstrates that how to change the scene in JavaFX using Button click event.

How to change scene in JavaFX – FXML with button click


If you know the basic of the JavFX and have some experience of it, then you can just look at the code snippet below which is the part of the actual program itself, and it is the main code snippet which implements the logic of screen changes in the JavaFX.

You can also download this program for the NetBeans IDE from our GitHub Repository by the link given below.

Download the source code of Change scene in JavaFX desktop application for the NetBeans IDE from GitHub.

So this is the program that demonstrates the scene change in JavaFX. If you like this program and want more such similar programs on any Java technology then only do comment us we will try our best to fulfill your wish.

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Create Splash Screen – Preloader In JavaFX using FXML

In this post, we are going to show the how to create a splash screen in JavaFX application. [ JavaFX Tutorial ]

So the first question come first what splash screen is?

The splash screen acts as a preloader while launching the application/ Software. In some mobile application or even in the desktop application you might have seen that while launching the application first 2-3 seconds displays the logo or any other screen, that is a splash screen.

splash-screen-javafx-codepuran

Same way in the desktop application of the JavaFX you can also create the splash screen that will be shown up at the starting of your application for some time and then automatically change the screen.

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In this tutorial of the JavaFX, You will see how to implement the Splash screen in JavaFX?

Source Code Of Splash Screen in JavaFX using FXML

You can also download the source code from our GitHub Repository from Linke Give Below:

Download the Source code for JavaFX Splash Screen from our GitHub Repo.

If you don’t want to look at whole Source Code and only want to know about the specific code for implementing the Splash Screen mechanism in the JavaFX, then you can look at the code snippet given below.

The above code snippet is the part of the Controller file of the Scene which we want to make the splash screen in our program. In our example, this code snippet is taken from the FXMLDocumentController.java file.

So by this way, you can create the splash screen in your JavaFX FXML desktop application. If you like this post and want to learn more such a JavaFX tricks, then you can follow us on the social media as well as you can also subscribe to Code Puran NewsLetters to get the latest programming post in your mail inbox.

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What is an Anonymous Object in Java

The Anonymous object in Java.

In Java, you can create the object without the reference variable. This object has no reference and can be used only once.

This type of objects which have no reference associated with it is called the anonymous object.

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Anonymous objects can be only used once At the time of the creation.

Example of an Anonymous Object in Java

Output

anonymous-object-java-codepuran

You can see that we have created the anonymous class in Java which has no reference. In above example, while invoking the add() and mul() methods there is two instances created for the both method and that both instances we can not use again without referencing it.

 

What is the Advantage of Anonymous Object in Java?

There is no direct use of the anonymous object in Java. It can also not help you to increase the performance or the speed of the execution.

Java Labeled For Loops With Example

However, you can save some of the CPU cycles of creating the reference of the object if you are using the object only once. Apart from that, you can increase the readability of the code as per your convenience and your comfort.

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You can also find the very rare discussion of this type of object over the internet because of its almost rare usability.

Over to You

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Java Labeled For Loops With Example

Java Labelled For Loop.

What is Labeled for loop in Java?

Labeled for loop have nothing newer than the label. In labeled for loops before starting every for loop we give the label to that for the loop.

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What is the label in for loop of Java and its syntax?

The label is the same as the labels on the Switch case. Any valid identifier of the label followed by the sign is valid for the label.

Labelled For Loop Java - www.codepuran

What is the use of labeled for loop in Java?

In normal nested for loop if you put the break statement in the inner for loop. When break statement executes it only terminate the execution of the inner for loop.

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But what if you want to terminate the execution of the outer for loop with the break statement in the inner for loop?

Then this special type of for loop comes in the picture. It terminates the execution of the loop which is associated with the label.

Java Simple and Labeled For Loop and Output

Output

Labelled For Loop Examle Java - www.codepuran

 

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Min Steps in Infinite Grid Solution Program [InterviewBit Question]

Min Steps in Infinite Grid Solution Program [InterviewBit Question]

Minimum Steps in Infinite Grid.

This programming question is often asked in many It Giants Interview questions and competitive programming Questions. Often Google and Amazon asked in their Software Engineering interview.

The same programming question you can also find on the InterviewBit: Coding Interview Question.

In this post, we are going to solve the problem in Java. You can also solve the Minimum steps to reach the destination in your choice of programming language.

You might like this also: Find Duplicate In Array (Java)- InterviewBit Problem Solution

Problem Statement of Minimum Steps in Infinite Grid Competitive Programming Question

You are in an infinite 2D grid where you can move in any of the 8 directions:

(x,y) to
(x+1, y),
(x – 1, y),
(x, y+1),
(x, y-1),
(x-1, y-1),
(x+1,y+1),
(x-1,y+1),
(x+1,y-1)

You are given a sequence of points and the order in which you need to cover the points. Give the minimum number of steps in which you can achieve it. You start from the first point.

Example :

Input : [(0, 0), (1, 1), (1, 2)]
Output: 2

It takes 1 step to move from (0, 0) to (1, 1). It takes one more step to move from (1, 1) to (1, 2).

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Java Source Code of Minimum Steps in Infinite Grid


You can also get more competition programming question solution on here.

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