we have been doing some multi- file program examples in class. Doing multi file programs keep your code more organized. It takes longer and uses more over head to use muli-file programs.

• multi-file program
• more organized code

In class we have been learning about multi-file programs, and in order to do that you need to create .o files. I learned you have to make a .h file w/ a corresponding .cc file, in order to get a .o file. then include that header file in your program using “” instead of <>

• .o files
• need them for making multi-file programs

Today in C/C++ class we learned a little more about classes. We talked about the “friends” class. I learned that kids cannot access their parents private parts, but friends can access their parents private parts.

• friends classes
• friends can have access to the private things in the parent class

today in C/C++ class Matt reviewed a little bit about forms. Forms cannot be used for every thing, but if you are in a situation where a form could be used it will save a lot of time, and code.

• forms
• can save you a lot of time and hassle

What happens if i leave the semi colon off of the end of a printf statement

C pocket reference

Based on what i have been reading in the C pocket reference, if i leave a needed semi colon off of a printf statement it will give me a syntax error and not compile.

I am going to take the semi colon off of the Hello, world! program's printf.

When i took the semi colon off of the Hello, World! program and tried to compile it, the following error occurred: hello.c: In function 'main': hello.c:4: error: expected ';' before 'return'

Based on the data collected:

• Was your hypothesis correct? Yes my Hypothesis was correct

I can conclude that if you have even one syntax error it will not compile your code, but it is very helpful by telling you where it is ( even down to telling you what line in the code it is on)

What will a simple for loop do if i change i++ to i–?

C programming text book

Based on what i have read in the C book i++ increments by 1 every time it loops, my hypothesis is that i– will decrement by 1 every time it loops.

#include<stdio.h>
 
	int main()
	{
     		int i;
     		for (i = 0; i < 10; i--)
     		{
          		printf ("i=%d\n",i);
 
     		}
     	return 0;
	}

When i ran this program with i– in the for loop, it did decrement by 1 but it continuously looped, and i had to exit the terminal.

Based on the data collected:

• Was your hypothesis correct? Sort of, it did decrement.
• What shortcomings might there be in your experiment? yes, i did not change the counter sign in the for loop to account for decrementing.

I have concluded that you can increment and decrement in a for loop, just make sure you change the counter statement.

Perform the following steps:

Whose existing experiment are you going to retest? Provide the URL, note the author, and restate their question.

Evaluate their resources and commentary. Answer the following questions:

• Do you feel the given resources are adequate in providing sufficient background information?
• Are there additional resources you've found that you can add to the resources list?
• Does the original experimenter appear to have obtained a necessary fundamental understanding of the concepts leading up to their stated experiment?
• If you find a deviation in opinion, state why you think this might exist.

State their experiment's hypothesis. Answer the following questions:

• Do you feel their hypothesis is adequate in capturing the essence of what they're trying to discover?
• What improvements could you make to their hypothesis, if any?

Follow the steps given to recreate the original experiment. Answer the following questions:

• Are the instructions correct in successfully achieving the results?
• Is there room for improvement in the experiment instructions/description? What suggestions would you make?
• Would you make any alterations to the structure of the experiment to yield better results? What, and why?

Publish the data you have gained from your performing of the experiment here.

Answer the following:

• Does the data seem in-line with the published data from the original author?
• Can you explain any deviations?
• How about any sources of error?
• Is the stated hypothesis adequate?

Answer the following:

• What conclusions can you make based on performing the experiment?
• Do you feel the experiment was adequate in obtaining a further understanding of a concept?
• Does the original author appear to have gotten some value out of performing the experiment?
• Any suggestions or observations that could improve this particular process (in general, or specifically you, or specifically for the original author).