CSBridge Darafaka Lisesi. 2014 Boazii nv. 2015 Ko nv. 2016 Ko - PowerPoint PPT Presentation

CSBridge

Darüşşafaka Lisesi. 2014 Boğaziçi Ünv. 2015 Koç Ünv. 2016 Koç Ünv. 2017 CTU, Czech Republic + Koç Ünv. 2018

Bryce Julia Asena Nick Chris

Ou Our awesome 2019 2019 Ko Koç te teaching te team!

Barış Pelin

Logistics (computer) LOL: Lots of Labs! Labrador Retrievers (Labs)

Logistics Discussion Section Meet your friends and talk through problems with your Section Leader!

Stanford?

Stanford

Prerequisites

Course Website http://koc.csbridge.org *note that its or org , not co com

Very High Level Journey

Breakout

What if I fall behind? CS Bridge

Share Ideas Not Code

Questions?

Our First Step

Karel

Karel Speaks Java s

Karel’s World North 3 + + + + + West East + + + + + 2 1 + + + + + South 1 2 3 4 5

Walls 3 + + + + 2 + + + + 1 + + + + 1 2 3 4

Beepers 3 + + + + 2 + + + + 1 + + + + 1 2 3 4

Knows Four Commands move(); turnLeft(); pickBeeper(); putBeeper();

move();

move(); 3 + + + + 2 + + + + 1 + + + + 1 2 3 4

move(); 3 + + + + 2 + + + + 1 + + + + + 1 2 3 4

turnLeft();

turnLeft(); 3 + + + + 2 + + + + 1 + + + + + 1 2 3 4

turnLeft(); 3 + + + + 2 + + + + 1 + + + + + 1 2 3 4

pickBeeper();

pickBeeper(); 3 + + + + 2 + + + + 1 + + + + + 1 2 3 4

pickBeeper(); 3 + + + + 2 + + + + 1 + + + + + 1 2 3 4

putBeeper();

putBeeper(); 3 + + + + 2 + + + + 1 + + + + + 1 2 3 4

putBeeper(); 3 + + + + 2 + + + + 1 + + + + + 1 2 3 4

Questions?

First Challenge 3 + + + + 2 + + + + 1 + + + + 1 2 3 4

First Challenge 3 + + + + 2 + + + + 1 + + + + 1 2 3 4

First Challenge move(); pickBeeper(); turnLeft(); putBeeper();

Need a Volunteer

First Challenge move(); pickBeeper(); turnLeft(); putBeeper();

Let’s Try It StepUp.java

Questions?

Improving our Program import stanford.karel.*; public class StepUp extends Karel { public void run() { move(); pickBeeper(); turnLeft(); It’s “Turn Right”, but… move(); 🙂 not very clear turnLeft(); turnLeft(); 😪 tedious turnLeft(); move(); putBeeper(); move(); } }

Improving our Program import stanford.karel.*; public class StepUp extends Karel { public void run() { move(); pickBeeper(); turnLeft(); move(); // turns Karel right turnLeft(); turnLeft(); turnLeft(); move(); It’s “Turn Right”, but… putBeeper(); move(); descriptive comments } 😪 tedious }

Anatomy of a Program import stanford.karel.*; public class StepUp extends Karel { public void run() { move(); pickBeeper(); turnLeft(); move(); This is the // turns Karel right program's turnLeft(); sour so urce e code de turnLeft(); turnLeft(); move(); putBeeper(); move(); } }

Anatomy of a Program import stanford.karel.*; public class StepUp extends Karel { public void run() { move(); pickBeeper(); turnLeft(); move(); This piece of the // turns Karel right turnLeft(); program’s so sour urce e code de is turnLeft(); called a me method . turnLeft(); move(); putBeeper(); move(); } }

Anatomy of a Program import stanford.karel.*; public class StepUp extends Karel { public void run() { name of This word is the nam move(); pickBeeper(); method (here, run) our me turnLeft(); move(); // turns Karel right turnLeft(); turnLeft(); We must always have a run() turnLeft(); method to run our program. move(); putBeeper(); move(); But we can make an any } oth other er m meth thod ods w s we w e want ! }

Method Definition private void name () { statements in the method body } w e n a s s d ’ l e d r a a s K i h o T t d n a y m r a m l u o b c a c o v

Improving our Program import stanford.karel.*; public class StepUp extends Karel { public void run() { move(); pickBeeper(); turnLeft(); Call our turnRight me Ca method move(); turnRight(); move(); putBeeper(); move(); } private void turnRight() { turnLeft(); Define a turnRight turnLeft(); me method turnLeft(); } }

Anatomy of a Program import stanford.karel.*; public class StepUp extends Karel { public void run() { move(); pickBeeper(); turnLeft(); move(); This is called an turnRight(); import statement . im move(); putBeeper(); It tells Java what Karel is. move(); } private void turnRight() { turnLeft(); turnLeft(); turnLeft(); } }

Anatomy of a Program import stanford.karel.*; public class StepUp extends Karel { public void run() { move(); pickBeeper(); turnLeft(); move(); turnRight(); This is called a move(); co code block . putBeeper(); move(); } private void turnRight() { turnLeft(); turnLeft(); turnLeft(); } }

Program Style import stanford.karel.*; public class StepUp extends Karel { public void run() { move(); pickBeeper(); These are turnLeft(); terrifying! move(); turnRight(); move(); putBeeper(); move(); } private void turnRight() { turnLeft(); turnLeft(); turnLeft(); } }

Program Style import stanford.karel.*; public class StepUp extends Karel { public void run() { move(); pickBeeper(); Style Ti St Tip #1 : turnLeft(); Align braces in move(); turnRight(); your code blocks. move(); putBeeper(); move(); } private void turnRight() { turnLeft(); turnLeft(); turnLeft(); } }

Program Style import stanford.karel.*; public class StepUp extends Karel { public void run() { move(); pickBeeper(); Style Ti St Tip #1 : turnLeft(); Align braces in move(); turnRight(); your code blocks. move(); putBeeper(); move(); } private void turnRight() { turnLeft(); turnLeft(); turnLeft(); } }

Program Style import stanford.karel.*; public class StepUp extends Karel { public void run() { move(); pickBeeper(); Style Ti St Tip #1 : turnLeft(); Align braces in move(); turnRight(); your code blocks. move(); putBeeper(); move(); } private void turnRight() { turnLeft(); turnLeft(); turnLeft(); } }

Program Style import stanford.karel.*; public class StepUp extends Karel { public void run() { move(); pickBeeper(); turnLeft(); move(); Style Ti St Tip #2 : turnRight(); move(); Align indentation putBeeper(); in your code blocks. move(); } private void turnRight() { turnLeft(); turnLeft(); turnLeft(); } }

Program Style import stanford.karel.*; public class StepUp extends Karel { public void run() { move(); pickBeeper(); turnLeft(); move(); Style Ti St Tip #2 : turnRight(); move(); Align indentation putBeeper(); in your code blocks. move(); } private void turnRight() { turnLeft(); turnLeft(); turnLeft(); } }

Questions?

Place 100 beeper? Place100.java

For Loop for (int i = 0; i < N ; i++) { // to repeat N times }

Review Helper me ds for defining new commands metho thods private void name () { statements in the method body } for loops repeat code N times fo N for (int i = 0; i < N ; i++) { // to repeat N times }

Today’s Examples on the Website

Today’s Slides on the Website

Your turn x 200 (in Labs)

Newspaper Karel

Your turn To the Labs!!

Build Efes