Classes, fields, methods, constructors, and objects are the building blocks of object-based Java applications. This Java tutorial teaches you how to declare classes, describe attributes via fields ...

Classes and objects in Java must be initialized before they are used. ... Each assignment’s value must be type-compatible with the class field’s type. Each variable stores the value directly, ...

This post explains how to use classes in Java to build objects and organize your code. Also learn: constructors, static methods, and more!

Consider the following sample code for the hero in an adventure game. Our hero has two instance variables: hitPoints (the amount of damage the hero can take until death) and an array of items ...

Creating objects in Java involves: Declaring a variable to reference the object. Instantiating the object using the new keyword. Initializing the object via a constructor. By following these steps, ...

Course work for Coursera Online class Object Oriented Programming in Java Specialization - xiaomei7/Coursera ... Generate visual maps using Java code and the Unfolding Maps libraries Create and draw ...

Declaring (and initializing) Arrays: We declare and initialize array variables like other class variables, but by specifying the type and constructor in a special form: for 1-dimensional (1-d) arrays, ...