The Hello World Program

writeln and write

Challenge: Fix the Code

Solution: Fix the Code

Compilation of D Code

Quiz

Fundamental Types

Assigning Values to Variables

auto and typeof

Challenge: Output Variable Values in a Statement

Solution: Output Variable Values in a Statement

Standard Input and Output Streams

Reading from the Standard Input

Quiz

Logical Expressions

Challenge: Fix the Code

Solution: Fix the Code

Integers

Basic Arithmetic Operations on Integers

Advanced Arithmetic Operations on Integers

Challenge: Find Remainder and Quotient of an Integer

Solution: Find Remainder and Quotient of an Integer

Detecting Overflow and Truncation in Integers

Floating Point Types

Overflow and Truncation in Floating Point Types

Floating Point Types Usage and Limitations

Challenge: Find Twice and One Fifth of a Floating Point Value

Solution: Find Twice and One Fifth of a Floating Point Value

Quiz

if Statement

Chaining if-else Statements

Challenge: Fix the Code

Solution: Fix the Code

Ternary Operator ?:

Lazy Operators

while Loop

Name Scopes

for Loop

Challenge: Print a Parallelogram Pattern

Solution: Print a parallelogram pattern

do-while Loop

Quiz

Arrays

An Array Example

Array Initialization and Basic Array Operations

Associative Arrays

Challenge: Sort and Reverse Elements of an Array

Solution: Sort and Reverse Elements of an Array

Slices and Other Array Features

Slices: Termination of Sharing

Operations on All Elements

Multi-dimensional Arrays

Challenge: Halve the Elements of the Array

Solution: Halve the Elements of the Array

Characters: Introduction

Characters: Types and Literals

Characters: The std.uni Module

Characters: D's Unicode Problems and Support

Strings

String Length, Literals and Comparison

Challenge: Print Part of a String

Solution: Print Part of a String

Quiz

Redirecting the Standard Input and Output Streams

Files

std.stdio.File struct

Challenge: Write the Contents of a File to Another File

Solution: Write the Contents of a File to Another File

Quiz

Integer and Floating Point Literals

Challenge: Fix the Code

Solution: Fix the Code

Character and string Literals

enum

Quiz

Formatted Output

Format Specifiers: Format_Character

Format Specifiers: Width, Separator, Precision and Flags

Format Specifiers: Formatted Element Output

Format Specifiers: Positional Parameters and Format

Challenge: Convert a Floating Point Value into a Percentage Value

Solution: Convert a Floating Point Value into a Percentage Value

Formatted Input

Challenge: Print the Number of the Month from a Given Date

Solution: Print the Number of the Month from a Given Date

Quiz

foreach Loop

foreach Loop Properties

Challenge: Swap Keys with Values of an Associative Array

Solution: Swap Keys with Values of an Associative Array

switch and case

Challenge: Build a Calculator Application

Solution: Build a Calculator Application

Quiz

Introduction

How Functions Work?

Improved Code Quality

Challenge: displayMenu() Function

Solution: displayMenu() Function

Quiz

Immutability

Immutable Parameters

Should a Parameter be const or immutable?

Immutability of the Slice Versus the Elements

Quiz

Value Types

Reference Variables

Reference Types

Value Types vs Reference Types

Quiz

Function Parameters

Referenced Variables As Parameters

Parameter Qualifiers: in, out, const and immutable

Parameter Qualifiers: ref, auto ref and inout

Parameter Qualifiers: lazy, scope and shared

Function Parameters: Summary

Challenge: Fix the Code

Solution: Fix the Code

Lvalues and Rvalues

Quiz

The Return Value of main( )

Parameters of main( )

Command-Line Options and the std.getopt Module

Environment Variables and Starting Other Programs

Quiz

Exceptions

The throw Statement

The try-catch Statement to Catch Exceptions

The finally Block

Exception Properties

Kinds of Errors

scope

Quiz

Types of assert

Properties of assert

enforce and the Use of assert-enforce

Challenge: Fix the Code

Solution: Fix the Code

Challenge: Fix the Code

Solution: Fix the Code

Quiz

Cause and Discovery of the Bugs

Unit Testing

Testing for Exceptions

Test-Driven Development

Challenge: Make the Unit Test Pass

Solution: Make the Unit Test Pass

Quiz

in Blocks for Preconditions

out Blocks and Expression-based Contracts

in Blocks Versus enforce Checks

Challenge: Maintain Total Points

Solution: Maintain Total Points for Two Football Teams

Quiz