CSCB07H3 Study Guide - Midterm Guide: Type System, Version Control, Static Variable
Document Summary
Test version control scenario marked by orange sticker! Two integer objects with same value are not the same (integer1 != integer2), but. Integer1. equal(integer2) is true because . equal method compares int value within integer objects. Two strings are created only if two new string lines are executed! How to create a new array: string [] somestringarray = new string [] { a , ab , abc } (using an array initializer) 1) to print an array, cannot just use built-in print method -> will print the address instead of contend! 2) can only contain objects of same type. How to create a new arraylist: arraylist somearraylist = new arraylist<>(); Static variable: doesn"t belong to any object, it belongs to the class itself. 1) it can only be called through the class, not an object of the class. 2) casting up is safe: children have all functions and properties of their parent. 4) a overriding method in class cannot be casted.
