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What is a program? What does a programmer do? What is the difference between Code along with a software engineer in this worked example using objects and methods. Model a course in a school's registration ... How do you convert a value from one data type to another? Use the built-in type casting functions int(), float(), and str() to convert ... Code along with a software engineer in this worked example using variable assignment and the How can we reuse functionality other programmers have already built? Learn how to import How does the computer decide whether two objects are equal? By default,

Code along with a software engineer in this worked example using object composition. Build a system for managing real estate ... Start practicing—and saving your progress—now with our How does the computer represent an object in memory? Trace the execution of a program step-by-step to investigate what ... Write a class definition to define the template for a new data type, and then call the class to instantiate objects of that type. How can you model the real world in code? Explore how programmers use abstraction to make complex systems easier to ... How can we reuse a code routine over and over again? Learn how to use functions to package a block of code and parameters to ...

Learn how to break down an object into several smaller objects that each focus on one specific job. Apply object composition to ... Code along with a software engineer in this worked example using nested data. Analyze a dataset of emergency response ... How can programs make our lives easier? Learn how programmers use scripts to automate complex, repetitive, ...