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Ada 2012 is the latest iteration of the high-level computer programming language Ada, originally developed in the late 1970s by the U.S. Department of Defense (DoD). Named after Ada Lovelace, it was designed to supersede over 450 programming languages used for DoD projects at that time. The International Organization for Standardization (ISO) endorsed its first version in 1983 and has since ratified updates including Ada 95, Ada 2005 and most recently, Ada 2012. Noted for its strong typing and design-by-contract features, it's widely used in critical systems like avionics and defense systems where safety is paramount. Its evolution continues under guidance from ISO/IEC JTC1/SC22/WG9 working group.

Ask the right questions secure the right Ada 2012 talent among an increasingly shrinking pool of talent.

First 20 minutes

General Ada 2012 app knowledge and experience

The first 20 minutes of the interview should seek to understand the candidate's general background in Ada 2012 application development, including their experience with various programming languages, databases, and their approach to designing scalable and maintainable systems.

What are the basic data types in Ada 2012?

The basic data types in Ada 2012 include Integer, Float, Character, Boolean, Duration, and String.

How would you declare a variable in Ada 2012?

In Ada 2012, a variable is declared by specifying its name, followed by a colon, the type of the variable, and a semicolon. For example, 'Var1: Integer;' declares a variable named Var1 of type Integer.

What is the purpose of the 'with' clause in Ada 2012?

The 'with' clause in Ada 2012 is used to import a package or a single entity from a package. It makes the specified package or entity available for use in the current declarative part.

How would you define a procedure in Ada 2012?

A procedure in Ada 2012 is defined using the 'procedure' keyword followed by the procedure name, any parameters in parentheses, and 'is' keyword. The procedure body is enclosed in 'begin' and 'end' keywords.

What are the different types of loops in Ada 2012?

Ada 2012 supports several types of loops including while loops, for loops, and loop ... until loops. Each type of loop is used for different scenarios based on the specific requirements of the program.

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What you’re looking for early on

Does the candidate have a strong understanding of Ada 2012's syntax and semantics?

Can they effectively debug and solve problems in Ada?

Do they have experience with real-time systems programming?

Have they demonstrated the ability to work in a team?

Next 20 minutes

Specific Ada 2012 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.

Describe the difference between a function and a procedure in Ada 2012.

In Ada 2012, a function is a subprogram that returns a value, while a procedure is a subprogram that performs an action but does not return a value. Functions are typically used for computations, while procedures are used for tasks that require performing actions.

How would you handle exceptions in Ada 2012?

Exceptions in Ada 2012 are handled using the 'exception' keyword in a block or subprogram. The 'when' keyword is used to specify the type of exception, followed by a sequence of statements to be executed when that exception occurs.

What are the different types of arrays in Ada 2012?

Ada 2012 supports two types of arrays: one-dimensional arrays and multi-dimensional arrays. One-dimensional arrays have a single index, while multi-dimensional arrays have multiple indices.

Describe the difference between a record and an array in Ada 2012.

In Ada 2012, a record is a collection of related elements of different types, while an array is a collection of elements of the same type. Records are used to group related data items together, while arrays are used to store sequences of data items of the same type.

How would you implement inheritance in Ada 2012?

Inheritance in Ada 2012 is implemented using tagged types. A new type can be derived from an existing tagged type, and it inherits all the operations of the parent type. New operations can also be added to the derived type.

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At this point, a skilled Ada 2012 engineer should demonstrate strong problem-solving abilities, proficiency in Ada 2012 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 Ada 2012.

What does the following Ada code do?
with Ada.Text_IO; use Ada.Text_IO;
procedure Hello is
begin
   Put_Line ("Hello, world!");
end Hello;
This code prints 'Hello, world!' to the console.
What will be the output of the following Ada code?
with Ada.Text_IO; use Ada.Text_IO;
procedure Main is
   X : Integer := 10;
   Y : Integer := 20;
begin
   Put_Line (Integer'Image(X + Y));
end Main;
The output of this code will be '30'. The code adds two integers X and Y and prints the result.
What does the following Ada code do?
with Ada.Text_IO; use Ada.Text_IO;
procedure Main is
   type Array_Type is array (1 .. 5) of Integer;
   Array_Var : Array_Type := (others => 0);
begin
   for I in Array_Var'Range loop
      Put_Line (Integer'Image(Array_Var(I)));
   end loop;
end Main;
This code declares an array of 5 integers, initializes all elements to 0, and then prints each element of the array.
What does the following Ada code do?
with Ada.Text_IO; use Ada.Text_IO;
with Ada.Real_Time; use Ada.Real_Time;
procedure Main is
   Task_Delay : Time_Span := Milliseconds (500);
begin
   delay until Clock + Task_Delay;
   Put_Line ("Task completed");
end Main;
This code introduces a delay of 500 milliseconds using Ada's real-time capabilities, and then prints 'Task completed' to the console.

Wrap-up questions

Final candidate for Ada 2012 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 Ada 2012 application deployments. Inquire about their experience in handling system failures and their approach to debugging and troubleshooting.

What are the different types of access types in Ada 2012?

Ada 2012 supports two types of access types: access-to-object types and access-to-subprogram types. Access-to-object types provide a way to dynamically allocate objects, while access-to-subprogram types provide a way to refer to subprograms.

Describe the difference between a task and a protected object in Ada 2012.

In Ada 2012, a task is a concurrent unit of execution, while a protected object is a module that encapsulates shared data with safe concurrent access. Tasks are used for concurrent programming, while protected objects are used for synchronization and mutual exclusion.

How would you implement a generic package in Ada 2012?

A generic package in Ada 2012 is implemented using the 'generic' keyword followed by the generic formal parameters, and the 'package' keyword followed by the package name. The package body contains the definitions of the operations that are parameterized by the generic formal parameters.

Ada 2012 application related

Product Perfect's Ada 2012 development capabilities

Beyond hiring for your Ada 2012 engineering team, you may be in the market for additional help. Product Perfect provides seasoned expertise in Ada 2012 projects, and can engage in multiple capacities.

Ada 2012 Consultive assessments

Ada 2012 Application Conversion Assessment Ada 2012 Application Integration Assessment Ada 2012 Data & Database Integration Assessment

Custom Ada 2012 development projects

Custom Ada 2012 App Conversion Ada 2012 Custom App Development Process App UI Design for Ada 2012 Facelifts

Hiring guide for Ada 2012 Engineers

Ada 2012 Developer Hiring Guide

What you’re looking for early on

The ideal back-end app developer

What you’re looking to see on the Ada 2012 engineer at this point.

Ada 2012 Consultive assessments

Custom Ada 2012 development projects