Primitive Data Types

Topics: Unit 1 - Primitive Types - Primitive data types - int, double, char, boolean - Reference data types - Strings and objects - final - know the differences in the way primitive and reference variables are stored and consequences of these differences - Know the mathematical operators and what they do (especially % and results when all numbers are integers vs results if all decimals or a mix of integers and decimals) - Order of operations - Understand how casting works and the results when casting is done at different points in an expression Unit 2 - Using Objects - Use of Math.random() and other Math methods - Wrapper Classes - Understand the basics of classes and instances of classes (also covered in Unit 5) - String methods - know how to use - .length() - .substring() - Difference of output with one parameter or two parameters - .indexOf() - Difference of results with one parameter or two parameters - compareTo() - Know what the results represent - < 0 - first value is less than the second value - 0 - values are equal - > 0 - the first value is greater than the second value Unit 3 - Booleans, If statements and Logic Operators - Be able to understand and evaluate boolean expressions - Be able to understand and evaluate if statements and the other variations (if - else) and nested if statements - Results of && and || - Truth tables - Equivalent statements and DeMorgan’s Law Unit 4 - Iterations - while - for - For both of the loop types, know how to create a loop, evaluate the number of times it runs and be able to determine the outcome - Nested iterations - understand how they work and evaluate outcome and number of times executed Unit 5 - Classes & Methods - constructor and use of keyword “new” - private vs public visibility modifiers - Use of methods - Accessor and mutator methods - toString() - Formal parameters and actual parameters - how to use a method with parameters - Understand the parts of a method header and how it relates to the code you are writing especially in FRQs - Using a class in a client (driver) program - Understand connections between the code in the class and the code in the client program - Understand what a static variable is and how it is used