Object-Oriented Programming: Classes and Objects, Summaries of Computer science

Download Object-Oriented Programming: Classes and Objects and more Summaries Computer science in PDF only on Docsity! Class: a program entity that represents either: 1. A program/module 2. A type of objects - A class is a blueprint or template for constructing objects - EX: The String class (type) is a template for creating many String objects(instances). Object: An entity that contains data and behavior. - data: variables inside the object - behaviour: methods inside an object *You interact with the methods; the data is hidden in the object. ->Constructing /9creating) an object: Type objectName = new Type(parameters); ->Calling an object's method: objectName.methodName(parameters); String: An object storing a sequence of text characters. -Unlike most objects, a String is not created with new. String name = "text"; String name = expression; -EX: String name = “Marla Singer”; Int x = 3; Int y = 5; String point = “(“ + x +”, “ + y +”)”;