Blog: Java Tutorial

Encapsulation means keeping an object’s internal representation protected and exposing a controlled public interface. In Java, private fields and public…

Core purpose: Iterator provides a standard way to traverse a collection without exposing its internal representation. It also provides a defined remove …

A while loop repeats code as long as a condition remains true. It is useful when the number of repetitions depends on changing state or input rather tha…

Java String methods turn text into something that can be inspected, searched, extracted, normalized and transformed. Learning the methods by purpose is …

Abstraction means exposing the essential behavior of a concept while hiding unnecessary implementation details. Java supports abstraction through abstra…

More than constants: An enum is a type with a fixed set of instances. Each constant can have fields, constructors, and methods, allowing behavior to sta…

The do-while loop executes a block and then checks its condition. Because the condition is evaluated after the body, the body always executes at least o…

StringBuilder is a mutable character sequence designed for repeated text construction. It is especially useful in loops, report generation and algorithm…

Interfaces define contracts that classes can implement. They are central to Java application design because they support polymorphism, separate callers …

Core idea: A record is a concise declaration for a class whose main purpose is to model data. The compiler supplies component accessors, equals, hashCod…