Noel Kamphoa - Home

Start Coding Java Today!

You don't know where to Start?

JDK Series

Java 8 New Features

Java 11 New Features

Java 21 New Features

Featured Posts

SOLID Principles in Java: Quick Guide

How to Mock Static Methods With Mockito

Create, Compile, and Run Your Hello World Java Application using a Terminal

DevOps Corner

How to Install OpenTelemetry Collector Using Docker

How to Install Metricbeat Using Docker

How to Install Filebeat Using Docker

Explore by Category

Java Basics & Syntax

Primitives Data Types

Arrays and Loops

Text, Date, Time, Numeric Objects

Object-Oriented Programming

Interfaces and Generics

Miscellaneous Topics

Common Java Exceptions

Latest Guides & Articles

declare-and-throw-exception

Declaring and Throwing Exceptions in Java: A Practical Guide

Noel Kamphoa August 15, 2025

exception-hierarchy-in-java

Exception Hierarchy in Java: Checked, Unchecked, and Errors

Noel Kamphoa August 9, 2025

exception-in-java

Exception in Java: How It Affects Program Flow

Noel Kamphoa August 9, 2025

tostring-method-in-java

How to Override the toString() Method Properly in Java

Noel Kamphoa August 8, 2025

hashcode-method

How to Override the hashCode Method Properly in Java

Noel Kamphoa August 4, 2025

equals-method

How to Override the equals Method Properly in Java

Noel Kamphoa August 4, 2025

stringbuilder-vs-stringbuffer-in-java

StringBuilder vs StringBuffer in Java

Noel Kamphoa July 22, 2025

stringbuffer-in-java

StringBuffer in Java: A Complete Guide

Noel Kamphoa July 22, 2025