1. Karel J Robot

2. “Meet Karel J Robot” zipped folder in Canvas
Save, compile, then run this program.

3. Questions Name of project? Name of class? Name of main method?
Name of project? Getting Started
Name of class? MyFirstRobot
Name of main method? Main

4. Questions…. What is imported? Name of object?
karel is a member of what super class? Tip: karel is a new what?
What is the name of karel’s world?
Where is karel declared?
What is imported? Kareltherobot.*\; (this is a “package” that already contains a class named UrRobot
Name of object? karel
karel is a member of what super class? Tip: karel is a new what? UrRobot
What is the name of karel’s world? MyFirstRobot.kwld
Where is karel delivered? Street 2, Avenue 2, facing East, with 0 beepers in his bag.

5. Questions What are the methods that every UrRobot class member can do?
Move
turnOff
turnLeft
pickBeeper
putBeeper

6. Questions What are the methods that every UrRobot class member can do?
Move
turnOff
turnLeft
pickBeeper
putBeeper
Move
turnOff
turnLeft
pickBeeper
putBeeper

7. Questions What are the methods that every UrRobot class member can do?
Move: Moves forward one block
turnOff: Turns off, then stops program
turnLeft: Turns 90 degrees left
pickBeeper: Gets beeper on current corner
putBeeper: Puts beeper on current corner
Move
turnOff
turnLeft
pickBeeper
putBeeper

8. Questions
What can cause an UrRobot object to shut off? (and stop your program!)
Move
turnOff
turnLeft
pickBeeper
putBeeper
Move
turnOff
turnLeft
pickBeeper
putBeeper

9. Questions
What can cause an UrRobot object to shut off? (and stop your program!)
Move into a wall
turnOff (this should be obvious)
turnLeft – no problem here
pickBeeper – when no beepers are there
putBeeper – when karel has none in his bag
Move
turnOff
turnLeft
pickBeeper
putBeeper

10. Error Classification 4-types lexical error (compiler catches)
word not in its dictionary
syntax error (compiler catches)
incorrect grammar, punctuation, incorrect location of a statement
execution error (run-time environment catches)
can’t perform what you ask (at run-time)
intent error (logic - guess who catches this one!)
program terminates successfully – junk output, however