Try This Online Java Gotchas Quiz
A previous blog post described the Java Gotcha "Bitwise vs Boolean Operator".
We added a variant of this, and some other Java Gotchas into a fun little Quiz called "Challenge The Sensei".
If you've read the blog post above then you'll be in a good place to ace at least one of the questions.
But your friends might not, so if you find the quiz fun, you can share it with them and see if they score as well as you.
Since we don't want to just quiz you. We want to try and use this to help educate and codify the knowledge. So we have created a Github repo that has runnable code examples for the problem, and the solution.
This is a Sensei enabled repo.
When you clone the repo and load it into IntelliJ, assuming you have the Secure Code Warrior Sensei IntelliJ Plugin installed, then it will automatically see that you have a .sensei folder, and load the Sensei recipes.
When browsing the code in the IDE you should see IntelliJ prompt you that the error exists in the code, and this should make it easier to see the gotcha in the code:
- Hover over the highlighted code then you'll see a prompt telling you about the error
- Use the Show Context Action key: alt+enter (Windows) option+enter (macOS) and we may have a QuickFix available that can fix the code.
Sensei recipes have been added for:
We are adding more recipes and more explanatory text to cover the rest of the code in the future... but don't let that stop you from having a look at the code and spotting the error yourself.
And remember to try the quiz and "Challenge the Sensei"
A fun little Java Gotchas quiz and supporting Github repo showing some gotchas and how to fix them
Alan Richardson has more than twenty years of professional IT experience, working as a developer and at every level of the testing hierarchy from Tester through to Head of Testing. Head of Developer Relations at Secure Code Warrior, he works directly with teams, to improve the development of quality secure code. Alan is the author of four books including “Dear Evil Tester”, and “Java For Testers”. Alan has also created online training courses to help people learn Technical Web Testing and Selenium WebDriver with Java. Alan posts his writing and training videos on SeleniumSimplified.com, EvilTester.com, JavaForTesters.com, and CompendiumDev.co.uk.
Secure Code Warrior is here for your organization to help you secure code across the entire software development lifecycle and create a culture in which cybersecurity is top of mind. Whether you’re an AppSec Manager, Developer, CISO, or anyone involved in security, we can help your organization reduce risks associated with insecure code.
Book a demo
Alan Richardson has more than twenty years of professional IT experience, working as a developer and at every level of the testing hierarchy from Tester through to Head of Testing. Head of Developer Relations at Secure Code Warrior, he works directly with teams, to improve the development of quality secure code. Alan is the author of four books including “Dear Evil Tester”, and “Java For Testers”. Alan has also created online training courses to help people learn Technical Web Testing and Selenium WebDriver with Java. Alan posts his writing and training videos on SeleniumSimplified.com, EvilTester.com, JavaForTesters.com, and CompendiumDev.co.uk.
A previous blog post described the Java Gotcha "Bitwise vs Boolean Operator".
We added a variant of this, and some other Java Gotchas into a fun little Quiz called "Challenge The Sensei".
If you've read the blog post above then you'll be in a good place to ace at least one of the questions.
But your friends might not, so if you find the quiz fun, you can share it with them and see if they score as well as you.
Since we don't want to just quiz you. We want to try and use this to help educate and codify the knowledge. So we have created a Github repo that has runnable code examples for the problem, and the solution.
This is a Sensei enabled repo.
When you clone the repo and load it into IntelliJ, assuming you have the Secure Code Warrior Sensei IntelliJ Plugin installed, then it will automatically see that you have a .sensei folder, and load the Sensei recipes.
When browsing the code in the IDE you should see IntelliJ prompt you that the error exists in the code, and this should make it easier to see the gotcha in the code:
- Hover over the highlighted code then you'll see a prompt telling you about the error
- Use the Show Context Action key: alt+enter (Windows) option+enter (macOS) and we may have a QuickFix available that can fix the code.
Sensei recipes have been added for:
We are adding more recipes and more explanatory text to cover the rest of the code in the future... but don't let that stop you from having a look at the code and spotting the error yourself.
And remember to try the quiz and "Challenge the Sensei"
A previous blog post described the Java Gotcha "Bitwise vs Boolean Operator".
We added a variant of this, and some other Java Gotchas into a fun little Quiz called "Challenge The Sensei".
If you've read the blog post above then you'll be in a good place to ace at least one of the questions.
But your friends might not, so if you find the quiz fun, you can share it with them and see if they score as well as you.
Since we don't want to just quiz you. We want to try and use this to help educate and codify the knowledge. So we have created a Github repo that has runnable code examples for the problem, and the solution.
This is a Sensei enabled repo.
When you clone the repo and load it into IntelliJ, assuming you have the Secure Code Warrior Sensei IntelliJ Plugin installed, then it will automatically see that you have a .sensei folder, and load the Sensei recipes.
When browsing the code in the IDE you should see IntelliJ prompt you that the error exists in the code, and this should make it easier to see the gotcha in the code:
- Hover over the highlighted code then you'll see a prompt telling you about the error
- Use the Show Context Action key: alt+enter (Windows) option+enter (macOS) and we may have a QuickFix available that can fix the code.
Sensei recipes have been added for:
We are adding more recipes and more explanatory text to cover the rest of the code in the future... but don't let that stop you from having a look at the code and spotting the error yourself.
And remember to try the quiz and "Challenge the Sensei"
Click on the link below and download the PDF of this resource.
Secure Code Warrior is here for your organization to help you secure code across the entire software development lifecycle and create a culture in which cybersecurity is top of mind. Whether you’re an AppSec Manager, Developer, CISO, or anyone involved in security, we can help your organization reduce risks associated with insecure code.
View reportBook a demo
Alan Richardson has more than twenty years of professional IT experience, working as a developer and at every level of the testing hierarchy from Tester through to Head of Testing. Head of Developer Relations at Secure Code Warrior, he works directly with teams, to improve the development of quality secure code. Alan is the author of four books including “Dear Evil Tester”, and “Java For Testers”. Alan has also created online training courses to help people learn Technical Web Testing and Selenium WebDriver with Java. Alan posts his writing and training videos on SeleniumSimplified.com, EvilTester.com, JavaForTesters.com, and CompendiumDev.co.uk.
A previous blog post described the Java Gotcha "Bitwise vs Boolean Operator".
We added a variant of this, and some other Java Gotchas into a fun little Quiz called "Challenge The Sensei".
If you've read the blog post above then you'll be in a good place to ace at least one of the questions.
But your friends might not, so if you find the quiz fun, you can share it with them and see if they score as well as you.
Since we don't want to just quiz you. We want to try and use this to help educate and codify the knowledge. So we have created a Github repo that has runnable code examples for the problem, and the solution.
This is a Sensei enabled repo.
When you clone the repo and load it into IntelliJ, assuming you have the Secure Code Warrior Sensei IntelliJ Plugin installed, then it will automatically see that you have a .sensei folder, and load the Sensei recipes.
When browsing the code in the IDE you should see IntelliJ prompt you that the error exists in the code, and this should make it easier to see the gotcha in the code:
- Hover over the highlighted code then you'll see a prompt telling you about the error
- Use the Show Context Action key: alt+enter (Windows) option+enter (macOS) and we may have a QuickFix available that can fix the code.
Sensei recipes have been added for:
We are adding more recipes and more explanatory text to cover the rest of the code in the future... but don't let that stop you from having a look at the code and spotting the error yourself.
And remember to try the quiz and "Challenge the Sensei"
Table of contents
Alan Richardson has more than twenty years of professional IT experience, working as a developer and at every level of the testing hierarchy from Tester through to Head of Testing. Head of Developer Relations at Secure Code Warrior, he works directly with teams, to improve the development of quality secure code. Alan is the author of four books including “Dear Evil Tester”, and “Java For Testers”. Alan has also created online training courses to help people learn Technical Web Testing and Selenium WebDriver with Java. Alan posts his writing and training videos on SeleniumSimplified.com, EvilTester.com, JavaForTesters.com, and CompendiumDev.co.uk.
Secure Code Warrior is here for your organization to help you secure code across the entire software development lifecycle and create a culture in which cybersecurity is top of mind. Whether you’re an AppSec Manager, Developer, CISO, or anyone involved in security, we can help your organization reduce risks associated with insecure code.
Book a demoDownloadResources to get you started
Benchmarking Security Skills: Streamlining Secure-by-Design in the Enterprise
The Secure-by-Design movement is the future of secure software development. Learn about the key elements companies need to keep in mind when they think about a Secure-by-Design initiative.
DigitalOcean Decreases Security Debt with Secure Code Warrior
DigitalOcean's use of Secure Code Warrior training has significantly reduced security debt, allowing teams to focus more on innovation and productivity. The improved security has strengthened their product quality and competitive edge. Looking ahead, the SCW Trust Score will help them further enhance security practices and continue driving innovation.
Resources to get you started
Reactive Versus Preventive Security: Prevention Is a Better Cure
The idea of bringing preventive security to legacy code and systems at the same time as newer applications can seem daunting, but a Secure-by-Design approach, enforced by upskilling developers, can apply security best practices to those systems. It’s the best chance many organizations have of improving their security postures.
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The Benefits of Benchmarking Security Skills for Developers
The growing focus on secure code and Secure-by-Design principles requires developers to be trained in cybersecurity from the start of the SDLC, with tools like Secure Code Warrior’s Trust Score helping measure and improve their progress.
Driving Meaningful Success for Enterprise Secure-by-Design Initiatives
Our latest research paper, Benchmarking Security Skills: Streamlining Secure-by-Design in the Enterprise is the result of deep analysis of real Secure-by-Design initiatives at the enterprise level, and deriving best practice approaches based on data-driven findings.
Deep Dive: Navigating the Critical CUPS Vulnerability in GNU-Linux Systems
Discover the latest security challenges facing Linux users as we explore recent high-severity vulnerabilities in the Common UNIX Printing System (CUPS). Learn how these issues may lead to potential Remote Code Execution (RCE) and what you can do to protect your systems.
