GEO 511 - September 7, 2000

Homework, due by class time on September 14, 2000

• Install the Java 2 SDK or make arrangements to have access to a computer that already has it installed.
• Read Deitel and Deitel, chapters 1 and 2.  You do not have to perform the exercises at the end of the chapters.
• Modify the Addition.java program from chapter 2 to implement Darcy's law.  You will need four inputs and one output.  The four inputs should be converted to double instead of int.  Output should also be double. Darcy's Law states that Q = - K * A * dh / dl, where
• Q  is the flow rate of water along a path through an aquifer.
• K is the hydraulic conductivity of the material in the aquifer.
• A is the cross sectional area of the flow path.
• dh is the change in hydraulic head from the beginning to the end of the flow path.
• dl is the length of the flow path.

In modifying the program, please get rid of any artifacts of the Addition.java program that are inappropriate for the new function of the program.  For instance, the names of the variables should be changed to reflect their new use.  Modify the comments so that they reflect the functioning of the program as well.  In the comments near the beginning of the program, include your name and the date on which the program was last modified.  In fact, the name of the program itself should be changed because it is no longer and addition program.  Remember to change the name of the file to reflect the new name of the program, otherwise it will not compile.  For example, if your program is called DarcysLaw, the source code file should be named DarcysLaw.java

After you have modified the program, compile and test it until it works properly.

Email or call me if you encounter any seemingly insurmountable problems.

Email me the source code when you have the program working.

• Write a paragraph describing a proposed semester project and submit it to me in class.

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