1. CSC141 Computer Science I Zhen Jiang Dept. of Computer Science West Chester University West Chester, PA 19383 zjiang@wcupa.edu

2. Table of Contents Introduction Plain text format printout Variable and its value type Expression & operator Math.pow & Math.sqrt Combined assignment DecimalFormat String

3. Why this class? Job hunting WCU graduated, Database, Software Engineering, … vs. UPenn, Temple, Drexel, … Something help you to stand out! — How do you like to be introduced? Welcome

4. Research project Critical thinking, communication, well-plan, etc. Real competition, deadline, pressure More realistic system, complex programming, for instance, http://www.cis.temple.edu/~jiang/RSU_Van.pptx. http://www.cis.temple.edu/~jiang/RSU_Van.pptx Student opportunities: http://www.cs.wcupa.edu/~zjiang/student_inf o.htm http://www.cs.wcupa.edu/~zjiang/student_inf o.htm Sponsorship NSF, NSA, etc Industry interns

5. NSF REU Collaborative work at inter- department level Collaboration at inter-disciplinary level Course project Collaboration at international level

6.  Industry partners Such as Gnostech, Chase, etc. Invited talks in courses Seminars or guest speeches Curriculum review/assessment Permanent intern opportunities

7. Competitive students entrepreneurially and computationally empowered citizenries Temple, NYU, etc. IBM, SAP, Vanguard, Bell lab, etc. Attract students and keep them continuously working hard Real-world computing paradigms and principles in an obstacle-less learning

8. No pain, no gain Need to handle those things coming from pressure: frustration, upset, madness, etc. Looking for solution, not excuse. Deadline!

9. Class website (including ppt)+ google search Hands-on experience Group discussion Happy ending!

10. Code 2-1, page 27 Names Main { } and ( ) Println and print (Code 2-3, page 35) \n (Code 2-5, page 36), \t (Code 2-6, page 37), and table 2-2. // (not \\), page 77 Print-out

11. Code 2-7, page 39 Type (declaration) Name, page 43 Begin with [a]-[Z], or _, or $ Contain only [a]-[Z], [0]-[9], _, and $ No keyword Case distinct Samples, table 2-4, page 43 Variable

13. Assignment Left is a single variable Right is a legal expression Initialization, page 52 Value of variable and execution time line, page 53 Assignment

14. Operator, Code 2-8, page 40, Table 2-7, page 55 Precedence order, table 2-8, page 58 Prefix/postfix increment (decrement), page 193-196 n[x][y][pd].counter[type]++ Casting, page 66 17/3=? 17.0/3=? (double)17/3 = ? Types, Code 2-10, page 46 Sample, Code 2-18, page 60 10% off? Expression

15. Math.pow and Math.sqrt, page 62 Math.PI, page 70 Combined assignment, table 2-13, page 63 Scope, page 75 Advanced techniques

16. Code 2-29, page 87 Keyboard Input

17. Displaying message, Code 2-32, page 94 Input, converting a string to number, Code 2-33, page 97 Value of, page 582-583 Parse, table 2-18, page 96 Output converting a number to string, toString, page 603 DecimalFormat, Code 3-21,22,23,24, page 174-180 String

18. indexof, page 574 Substring, table 9-5, page 577 Concat, Table 9-6, page 581 Replace, Table 9-6, page 581 Length, Code 2-21, page 73 Sting.valueOf, table 9-7, page 583 String (continue…)

19. String split “12.123456” => “12.123” Example