Intro to Programming Examples
1.1 Programs, Fields
First Example
Second Example
1.2 Java as a Calculator
Operators
Operators
Not Quite Math
Not Quite Math
Negative Results
1.3 Syntax
Syntax
Syntax
Syntax
2.1 Using Fields
Using Fields
Using Fields
Getting Paid
Calculating Revenue
2.2 Beyond ints
String Examples
Conctenating Strings
Conctenating Strings
Video Game Example Initial Attempt
Video Game Example Second Attempt
Number Precision
Rectangle
2.3 Java Checks Types
Mixing Strings and ints
Mixing Strings and ints
Mixing Strings and ints
3.1 Capturing Repeated Work with Methods
Using Methods
Using Methods
Using Methods
3.2 Methods as Descriptions of Tasks
Implementing Tasks
Following the Design Recipe
Following the Design Recipe
3.3 With Great Power Comes More Opportunity for Mistakes
Understanding Errors
Understanding Errors
Understanding Errors
Understanding Errors
4.1 Beyond Arithmetic and Concatenation
Using Conditions
Using Conditions
Using Conditions
Using Conditions
4.2 More Examples of Decision-Making Programs
Using Conditions
Using Conditions
Using Conditions
5.1 Representing Compound Data
Combining Data into Classes
5.2 More on Methods
Creating Instances of Classes
5.3 Variables and Scope
Total Cost Calculation
Variable fill-in
Bad Scope
Bad Scope Experimentation
6.2 From Examples to Testing
Reviewing the Code
7.1 Nested Data
RectRegion
RectRegion examples
ExamplesRegion
contains
belowLeftOf
aboveRightOf
contains
7.2 More Regions
Why did the math teacher's plants keep dying? -- Because they grew square roots.
Square Roots
Square Roots
8.1 Searching for Images
Image Data
largerThan
8.2 Queries as Data
matches
matches
8.3 Identifying Common Behaviors
Field access (or lack thereof)
8.4 Combining Queries
AndQuery
ContainsKeyword
Combining AndQueries
OrQuery
9.2 Printing
WelcomeMessage
WelcomeMessage with Print
WelcomeMessage Corrected
9.3 The static keyword
MathExamples
MyMath
9.4 The void keyword
void WelcomeMessage
9.5 The main method
HelloWorld
11.2 Abstracting Common Method Implementations
extends AQuery
extends AQuery
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