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Introduction

Quick Start What is Dr. Haki Docs

Foundations

Single Responsibility Principle Single Point of Truth Separation of Concerns SoC Fail Fast The Law of Demeter Always Comment on Jiras Create Small PR's Exercism Root Cause Analysis

Development

ATS BEM Methodology

A functional Interface API Auto-boxing and Un-boxing Beware of Variable Scope byte Catch Order Rule Specific Checked vs. Unchecked Exceptions Compiler Time Constants Compiler VS Runtime Error Dynamic Dispatching Encapsulation Exception Propagation Finally try-catch overriding power Float vs Double Garbage Collector Heap Space java compiler Java Exceptions javac command for Compiler JVM Many things can go wrong in a program Numeric Promotion in Java Encapsulation polymorphism String Pool Unreachable Statement

Cloud

Azure Fundamentals

Java

Many things can go wrong in a program

Indeed.

Many things
can go wrong
in a program.

Java uses exceptions
to deal with some
of these scenarios.

Follow the Fail Fast principle
for a more defensive programming.

JVM

Java Virtual Machine

Numeric Promotion in Java

Java feature for automatic conversion