Ada Programming Language Cheatsheet

Ada, a robust and statically-typed programming language, is known for its focus on safety and reliability in critical systems. Whether you’re a seasoned Ada developer or a newcomer, this cheatsheet serves as a handy reference for key Ada features, syntax, and best practices.

Hello, Ada!

with Ada.Text_IO;

procedure Hello is
begin
   Ada.Text_IO.Put_Line("Hello, Ada!");
end Hello;

Basics

Comments

-- This is a single-line comment

/*
   This is a
   multi-line comment
*/

Variables

X : Integer := 42;
Y : Float := 3.14;

Constants

Pi : constant Float := 3.14159265359;

Strings

Message : constant String := "Hello, Ada!";
Interpolated_Message : String := "The value of X is " & Integer'Image(X) & ".";

Control Flow

If Statement

if X > 10 then
   -- Code here
elsif X < 0 then
   -- Code here
else
   -- Code here
end if;

Case Statement

case X is
   when 1 =>
      -- Code here
   when 2 | 3 =>
      -- Code here for 2 or 3
   when others =>
      -- Code here for other cases
end case;

Loop

while X > 0 loop
   -- Code here
   X := X - 1;
end loop;

Procedures and Functions

Procedure Declaration

procedure Print_Sum(X, Y : Integer) is
begin
   Ada.Text_IO.Put_Line("Sum: " & Integer'Image(X + Y));
end Print_Sum;

Function Declaration

function Add(X, Y : Integer) return Integer is
begin
   return X + Y;
end Add;

Exception Handling

declare
   Result : Integer;
begin
   Result := X / Y;
exception
   when Constraint_Error =>
      Ada.Text_IO.Put_Line("Division by zero not allowed.");
end;

Records and Enums

Record Declaration

type Point is record
   X, Y : Float;
end record;

Enum Declaration

type Result_Type is (Ok, Err);

Tasking (Concurrency)

task type My_Task;
task body My_Task is
begin
   -- Code for the task
end My_Task;

This Ada programming language cheatsheet provides a quick reference for developers working with Ada. Whether you’re building safety-critical systems or exploring the language for the first time, use this guide to enhance your Ada programming experience. For more in-depth information, refer to the official Ada documentation and community resources

FAQ