Exploring Variable Creation in Coding

Exploring Variable Creation in Coding

Assessment

Interactive Video

Computers

11th Grade

Practice Problem

Medium

Created by

Sophia Harris

Used 4+ times

FREE Resource

The video tutorial explains the concept of variables in coding, focusing on Java. It covers the two main types of variables: primitive and reference. Primitive variables store basic data types like integers, doubles, and booleans, while reference variables point to memory locations for objects like strings. The tutorial uses analogies like baggies and arrows to illustrate these concepts. It also guides viewers on creating and initializing variables, emphasizing the importance of choosing the right data type, naming the variable, and optionally assigning an initial value.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a variable in programming?

A software development methodology

A type of computer hardware

A container for storing a value

A set of instructions for the computer to follow

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the two types of variables in Java?

Static and Dynamic

Primitive and Reference

Public and Private

Integer and String

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which color sticky note represents integers in the analogy?

Green

Blue

Yellow

Red

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a reference variable contain?

A direct value

A list of commands

An address pointing to a location in memory

A numerical code

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the three decisions to make when creating a variable?

Size, Type, Name

Name, Type, Value

Access, Type, Name

Type, Value, Location

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of variable is used to store decimal numbers in Java?

string

boolean

double

int

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you declare a variable in Java?

datatype = name;

create datatype name;

name datatype;

datatype name;

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