Java Programming

Write a complete interactive Java GUI program(for example: javax.swing.JOptionPane;) NOT A APPLET that requests two numbers from the user. The first number is the row dimension and the second number is the column dimension. Print to the user a rectangle of stars based on the input. The program must do the following: 1. Print the rectangle of stars. 2. Error check for bad input: alphabetic characters or negative numbers. Do not end the program but remind the user of the proper input. 3. Allow the user to use the program until the user decides to terminate the program. This is what I have so far...

Context free and CFG

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Context free/palindrome

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Two programs in Java

I'm trying to learn java by myself and I came across the two programs attached below, but I can't figure out how to do them. --- 4a. Write a program in which the main method calls a method with the heading public static char changeCase(char ch) that if ch is a lowercase letter, the method will return the corresponding uppercase letter, and if ch is a uppercase letter, the method will return the corresponding lowercase letter. If ch is not a letter, the method returns the same value of ch. Thus, for instance, changeCase('a') returns A, changeCase('B') returns b, and changeCase('3') returns 3. Note that the uppercase letters have a unicode (ascii code) value that is 32 lower than the corre... click for more

Nonlinear regression of pharmacokinetic model using Matlab

All I can tell you is that we are supposed to use a multidimensional extension of Taylor's theorem to approx. the variation of f(x) in the neighborhood of an initial guess, x^(k) where f'(x^(k)) is the Jacobian system of equations. I have the equation J^k * deltax^k = -f(x^k) for the system of linear equations (See attached file for full problem description with proper symbols) --- Placental transport of AZT to determine the pharmacokinetic parameters, to assess placental toxicity and to assess distribution of AZT in exposed placental tissues. Using the data given below: 1.) Model maternal and fetal compartments separately as a first order drug absorption and elimination proble... click for more