9 Oct 2006

Attendance: NJ, KT, SW
IC emailed to Isabelle, MM made a mistake about the venue.

1. Time:  5 minutes past the hour -- 5 minutes to the hour
2. Introduced each other
3. Ida explained how the tutorials work.
4. How to learn programming:
	distinguish a) syntax of Java language
		    b) design a program which is an ordered set of instructions
5. Write done the new commands/ instructions learnt from the lectures
	no one could remember
6. Learn new statements:
	System.out.println();
	System.out.println("x");
	System.out.println(35/3);
	System.out.println(35/2.0);
	System.out.println("x="+(35+2));
	
	System.out.print("x");
	System.out.print(35/3);
	System.out.print(35/2.0);
	System.out.print("x="+(35+2));

	System.out.print("35/3=");
	System.out.println(35/3.0);
	
7. Learn the structure of Java:
	class HellowWorld {
		public static void main(String [] args) {
			System.out.println("x");
		}
	}
8. Write a program to print out on paper:
	a) `My name is xx'
	b) `My name is xx', 3 times in three lines
	c) `My name is xx', 3 times in one lines
	
9. Type in the program using TexPad
10. Compile
11. Run application

12. Note:
	a) Java is case sensitive, so `System' is different from `system'.
	b) file name has to be the same as the class name.
	c) the file name can only have 1 `.java' extension.  Error occurs 
	   if use a file name with double extension, such as `x.java.java'.
13. Add comments	
14. Learn new statements:
        
	for (int i=0; i<n; i++) {  // statements to be repeated
	   // statements to be repeated
	}

	or 
	for (int i=0; i<n; i=i+1) {
	   // statements to be repeated
	}
15. Write a program to print
	d) `My name is xx', 100 times in 100 lines	
	e) `My name is xx', 1000 times in 1000 lines
16. Challenges:
    Write a program to print the following pattern:
    *
    **
    ***
    ****
    *****
    	for (int i=0; i<5; i++) {
    		for (int j=0; j<5; j++) {
    			System.out.println("*");
    		}
    	}
    	
17. Next time please bring with you:
	a) cis109 homework questions of the week, find out the specific requirements 
	   in the lecture
	b) a pen + paper (better a notebook)
	c) any questions, problems to discuss
	
18. I may ask each of you to write down on a piece of paper:
	a) any new Java statements/commands learnt in the lecture
	b) Java programs for a given problem.