1. COMS W1004 Introduction to Computer Science June 15, 2009

2. Last Week Big Java 5.1-5.4 and 6.1-6.5 –Comparison operators and Boolean logic –Conditionals –Loops –Random numbers –Strings S&G chapter 4 –Binary numbers –Encoding –Computer architecture basics

3. Today Arrays –Big Java 7.1-7.7 Exceptions Reading and writing text files –Big Java 11.1, 11.4-11.5 Homework #4

4. Office Hours This Week Chris –Wednesday 3-5pm, 608 CEPSR Suhas –Thursday 5-7pm, 122 Mudd Swapneel –Friday 11am-1pm, 608 CEPSR

5. Homework Stats Homework #1 –Average: 40.3 –Std Dev: 9.5 Homework #2 Theory –Average: 37.7 –Std Dev: 9.4 Homework #2 Programming –Average: 42.4 –Std Dev: 10.0

6. Homework #4 Due next Monday, June 22 at beginning of class Theory –Paper submission only Programming –Electronic submission and paper submission