97 Things Every Java Programmer Should Know Pdf Github |verified| Site

Do not use exceptions for control flow. Reserve exceptions for truly exceptional circumstances. When designing APIs, consider returning Optional instead of null to explicitly signal the potential absence of a value, forcing the consumer to handle it safely. 5. The Software Craftsmanship Mindset

Reduces boilerplate when the type is obvious ( var users = new ArrayList (); ). 97 things every java programmer should know pdf github

Mastering the Java Virtual Machine (JVM) is what separates a novice coder from a high-performance engineer. You cannot optimize what you do not understand. Do not use exceptions for control flow