BlueJ questions & answers

Development environment for Java designed for beginners
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Question by Guest
67 views
October 22, 2021
Swati Dubey
Answer by Swati Dubey

Yes, BlueJ can run on a 32-bit Windows 8.1 operating system.

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Question by Guest
84 views
April 8, 2020

Create a class called Vehicle, that contains five fields, current speed, power, accelerate, decelerate and top speed, all of which type is int.
Define a constructor that takes and sets the accelerate, decelerate; sets the power to 20, and top speed to 120. Leave the current speed as 0.


Also define a constructor that takes no parameters. The power field should be set to the value of 30 in this constructor, top speed to 160, and accelerate and decelerate to reasonable amounts. Leave the current speed as 0.

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Question by khushi mishra
2K views
May 16, 2019
aryan maurya
Answer by aryan maurya

From the official website of bluej
bluej.org

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Question by prasoon
462 views
August 5, 2015
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Answer by Guest #38450006

yes blu j work properly in windows 8.1

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Question by neel
411 views
July 7, 2015

In using Math.rint(4.5) and I am getting the value as 4.0, but when I use Math.round(4.5) I am getting the value as 5. Why is that so?

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Answer by Sean Hill

It's normal to have different results when you are using two different functions. There is also a debate about these functions on various websites.


I have read about it, and there are significant changes in functions. Use the websites listed in Google Search to find out more: https://goo.gl/aWJLI6


I recommend checking the discussion on the Coderanch website.

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Question by Guest
379 views
June 14, 2011
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Answer by Robert Polubinski

The latest version of BlueJ is known to work in Windows 7. Version 3.1.0 is optimized to run in Windows 2000, XP, Vista or newer. Java 7 needs to be installed for this application to run properly.

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Answer by Mary Nett

An instance variable is a variable defined in a class, for each object of the class that has a separate copy. A class variable is a variable defined in a class of which a single copy exists. In programming languages like Java, C#, and C++, a static variable is a variable that has been allocated statically.

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Question by Guest
341 views
April 14, 2015
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Answer by Sean Hill

No, BlueJ is not compatible with Windows Phone. If you check the official website, you will find out the compatible operating systems available for installation and running. I have also checked known search engines to find something related to Windows Phone and Bluej, but nothing come up.


Official website: http://www.bluej.org/

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