Gregory M. Kapfhammer
Key Concept
Corresponding Diagram
In-Class Discussion
In-Class Activity
Details in the Textbook
An alternative to using if statements
Cannot encode complex boolean expressions
Sometimes simpler for a programmer to understand
Which approach do you prefer? Why did you pick it?
See Section 6.1 for more details!
Please see page 274 for an example!
Work with a partner to compare while and do-while loops
What is the key difference?
How do pick between these options?
Can you draw a picture to visualize their execution?
Visualize these loops with a diagram
When is it best to use a while loop?
What if we know the number of iterations?
We should try to use the for loop!
What is the structure of a for loop?
Visualize the for loop with a diagram
Run the git pull command!
Compile the Multiples.java program
Run this program like it was on page 282
Try five different inputs for this program
How does this program use for loops?
Create a program called PrintStatusBar.java
The program should accept two command-line arguments
The first input should be the number of printed symbols
The second input should be the printed symbols
Print the specified number of symbols in the terminal
Can you compile and run this program?
What output does it produce?
Make sure you ran the git pull command!
Find the Stars.java program
Can you compile and run this program?
What output does it produce?
Change the MAX_ROWS variable
Recompile the program
How does the output change? Why?
Three basic loop statements are functionally equivalent
What if we want to run the loop body at least one time?
What if we know the number of times iteration will occur?
What if we want to use an Iterator?
Make sure that you understand the trade-offs!