01 Getting Started

Question 1

micro-world

Answer 1

miniature simulated environment that is populated with one or more objects with clearly defined behaviors, and that can be visually represented so that you can see how the objects move around and behave over time.

Question 2

origin of cart. coordinates

Answer 2

(0,0). top left corner.

Question 3

program

Answer 3

set of instructions for a computer

Question 4

source code

Answer 4

program is written by a programmer in some programming language

Question 5

compiler

Answer 5

translates a program, as a whole, from one form to another.

Question 6

interpreter

Answer 6

translates a program into machine language one statement at a time

Question 7

algorithm

Answer 7

a plan for solving a problem

Question 8

object

Answer 8

represents a specific concept or item that is relevant to the problem we are trying to solve

Question 9

behavior

Answer 9

an action that an object can take or a task that it can perform in response to a request from an external source

Question 10

method

Answer 10

a collection of statements that are written in some programming language to describe a specific behavior

Question 11

precondition

Answer 11

a method is something that is assumed to be true before the method is invoked

Question 12

postcondition

Answer 12

a method is something that is assumed to be true after the method has been executed

Question 13

message

Answer 13

a request for a specific object to perform a specific task

Question 14

class

Answer 14

a family of objects that all understand the same methods

Question 15

instantiation

Answer 15

Creating a new object

Question 16

declaration

Answer 16

A new name is introduced in a program

Question 17

how to comment in java

Answer 17

//

Question 18

Some methods take additional values that provide information about what the method should do. These additional values are called:

Answer 18

parameters

Question 19

In a micro-world like a LightBot, the coordinates that identify the upper left corner of the world are:`

Answer 19

(0,0), top left.

Question 20

An instance of a class is called:

Answer 20

object

Question 21

A special kind of method that is used to initialize a brand new object is called:

Answer 21

constructor

Question 22

The set of values of all of the attributes defining an object are called its:

Answer 22

state

Question 23

When we create a new class that inherits from another, we call this new class a:

Answer 23

Derived Class

Subclass

Child Class

Question 24

what do you call it when a new class inherits from an existing class

Answer 24

extends