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Visual J++ is a programming language developed by Microsoft that was designed to provide a Windows-based environment for developing applications in the Java programming language. It was part of Microsoft's Visual Studio product line and was released in 1996. Visual J++ included a variety of tools and features to aid in software development, such as a code editor, a debugger, and a GUI builder. However, it was criticized for its lack of full compatibility with the Java standard, as it included additional libraries and features not found in the official Java specification. Microsoft discontinued Visual J++ in 2004 due to legal issues with Sun Microsystems over its deviation from the Java standard.

Ask the right questions secure the right Visual J++ talent among an increasingly shrinking pool of talent.

First 20 minutes

General Visual J++ app knowledge and experience

The first 20 minutes of the interview should seek to understand the candidate's general background in Visual J++ application development, including their experience with various programming languages, databases, and their approach to designing scalable and maintainable systems.

How would you describe the purpose of Visual J++?

Visual J++ is a development environment from Microsoft for writing computer programs in the Java programming language. It provides a set of development tools and a custom runtime environment.

What are the key features of Visual J++?

Key features include a visual form designer, a source code editor, a debugger, a compiler, and a class browser. It also supports Windows Foundation Classes (WFC) for developing Windows applications.

How would you create a new project in Visual J++?

To create a new project, you go to the File menu, select New and then Project. You then select the type of project you want to create, give it a name and specify the location.

What is the use of the 'main' method in a Visual J++ program?

The 'main' method is the entry point of a Visual J++ program. When you run a program, the runtime system starts by calling the 'main' method.

Describe the difference between a class and an object in Visual J++.

A class is a blueprint or template that describes the behavior and state that the objects of the class all share. An object is an instance of a class.

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What you’re looking for early on

Does the candidate have a solid understanding of Visual J++?

Has the candidate demonstrated problem-solving skills?

Is the candidate able to communicate effectively?

Does the candidate have experience with similar projects or tasks?

Next 20 minutes

Specific Visual J++ development questions

The next 20 minutes of the interview should focus on the candidate's expertise with specific backend frameworks, their understanding of RESTful APIs, and their experience in handling data storage and retrieval efficiently.

What are Windows Foundation Classes (WFC) in Visual J++?

WFC is a set of Java classes provided by Visual J++ for developing Windows applications. It is a wrapper around the Windows API.

How would you handle exceptions in Visual J++?

Exceptions in Visual J++ are handled using try-catch-finally blocks. The try block contains the code that might throw an exception, the catch block contains the code to handle the exception, and the finally block contains the code that is always executed, whether an exception is thrown or not.

What is the purpose of the 'this' keyword in Visual J++?

The 'this' keyword is used to refer to the current instance of the class. It can be used to access the methods and variables of the current object.

Describe the difference between overloading and overriding in Visual J++.

Overloading is when two or more methods in the same class have the same name but different parameters. Overriding is when a subclass provides a specific implementation of a method that is already provided by its parent class.

What are the different types of inheritance in Visual J++?

Visual J++ supports single inheritance, where a class can inherit from only one superclass, and interface inheritance, where a class can implement multiple interfaces.

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At this point, a skilled Visual J++ engineer should demonstrate strong problem-solving abilities, proficiency in Visual J++ programming language, and knowledge of software development methodologies. Red flags include lack of hands-on experience, inability to articulate complex concepts, or unfamiliarity with standard coding practices.

Digging deeper

Code questions

These will help you see the candidate's real-world development capabilities with Visual J++.

What does this simple Visual J++ code do?
public class HelloWorld {
 public static void main(String[] args) {
 System.out.println("Hello, World!");
 }
}
This code prints 'Hello, World!' to the standard output.
What does this Visual J++ code do?
public class Test {
 public static void main(String[] args) {
 int x = 10;
 int y = ++x;
 System.out.println(y);
 }
}
This code increments the value of 'x' before assigning it to 'y'. So, 'y' will be 11.
What will be the output of this Visual J++ code?
public class ArrayTest {
 public static void main(String[] args) {
 int[] arr = {1, 2, 3, 4, 5};
 for(int i: arr) {
 System.out.print(i + " ");
 }
 }
}
This code prints all the elements of the array 'arr' in a single line separated by spaces. So, the output will be '1 2 3 4 5 '.
What does this Visual J++ code do?
public class ThreadTest extends Thread {
 public void run() {
 System.out.println("Thread is running.");
 }
 public static void main(String args[]) {
 ThreadTest t1 = new ThreadTest();
 t1.start();
 }
}
This code creates a new thread and starts it. The new thread then prints 'Thread is running.' to the standard output.

Wrap-up questions

Final candidate for Visual J++ Developer role questions

The final few questions should evaluate the candidate's teamwork, communication, and problem-solving skills. Additionally, assess their knowledge of microservices architecture, serverless computing, and how they handle Visual J++ application deployments. Inquire about their experience in handling system failures and their approach to debugging and troubleshooting.

How would you use the 'super' keyword in Visual J++?

The 'super' keyword is used to refer to the immediate parent class of a class. It can be used to access the methods and variables of the parent class.

What is the purpose of the 'final' keyword in Visual J++?

The 'final' keyword is used to indicate that a variable's value cannot be changed, a method cannot be overridden, or a class cannot be subclassed.

Describe the difference between an abstract class and an interface in Visual J++.

An abstract class is a class that cannot be instantiated and is meant to be subclassed. It can contain both abstract and non-abstract methods. An interface is a reference type that can contain only abstract methods.

Visual J++ application related

Product Perfect's Visual J++ development capabilities

Beyond hiring for your Visual J++ engineering team, you may be in the market for additional help. Product Perfect provides seasoned expertise in Visual J++ projects, and can engage in multiple capacities.

Visual J++ Consultive assessments

Visual J++ Application Conversion Assessment Visual J++ Application Integration Assessment Visual J++ Data & Database Integration Assessment

Custom Visual J++ development projects

Custom Visual J++ App Conversion Visual J++ Custom App Development Process App UI Design for Visual J++ Facelifts

Hiring guide for Visual J++ Engineers

Visual J++ Developer Hiring Guide

What you’re looking for early on

The ideal back-end app developer

What you’re looking to see on the Visual J++ engineer at this point.

Visual J++ Consultive assessments

Custom Visual J++ development projects