data validations

I need help on how to validate these data in visual basic.net: 1. the password must not be same as employee ID and must contain 4-6 characters 2. email must ba a valid one 3. name and address fields cannot be left blank 4. maxium score must be postive number between 1 and 100 5. number of students must be posti ...continues

computer science

Given the first 20 bytes (in hexadecimal) of an Ethernet frame: AA AA AA AA AA AA AA AB CD EF 01 23 45 67 CD EF 02 46 8A CE 00 12 4B 8C a) What is the Source Address (in hexadecimal)?__________________ b) What is the length of the data field (in hexadecimal)? _______________ c) ...continues

Calculator

Looking for mortgage program to display 3 mortgage loans: 7 year at 5.35%, 15 year at 5.5 %, and 30 year at 5.75%. Use an array for the different loans Display the mortgage payment amount for each loan. Non-graphical user interface. Insert comments in the program to document the program. Build on this if possible using an a ...continues

FlowChart, Hierarch Chart and Pseudocode

A student borrows 3,000 at an interest rate of 2 % per month on the unpaid balance. If the student pays $200 at the end of each month, what is the remaining balance at the end of one year? How much interest has the studen paid fo the year? Output: Output consists of a screen display showingthe balance each month, remaini ...continues

Depth First Search

Hi I would appreciate if you could say if the statement below is TRUE or FALSE and explain why. Given a graph G, we might start a DFS from two different vertices, u and v. Any back edge in the DFS starting from u is also a back edge in the DFS starting from v. Thanks Annie

Fully connected graphs

Is it TRUE or FALSE that ( and why ) In an undirected graph(with no self loops), if every vertex has degree at least n/2, then the graph is fully connected ? Thanks

Huffman tree

Hi Please find correct answer and explain. Question: Consider the Huffman tree where the character frequencies are: Freq(A)=16, Freq(B)=8; Freq(C)=4;Freq(D)=2;Freq(E)=1;Freq(F)=1. The total length of the encoding with the above frequencies and the derived Huffman tree is: Answers: a) 62 b) 63 c) 64 d) ...continues

Create an appropriate user interface. Visual Basic

You've just started a new semester and you've become friends with one of your classmates, Tomislav. Tomislav tells you he has just moved to the United States from Europe and he's having a difficult time adjusting to the English units of measurement. In his country, most liquids are measured in liters, not gallons. Tomislav ...continues

Data Structure and Algorithms

Question 1 Implement an array-based abstract data type 'stack' specified in class and do the following: Write a procedure called read_and_evaluate_expression that reads in and evaluates a postfix expression (defined below) and writes out its value. (JAVA) Your procedure must follow the algorithm sketched below, and it must ...continues

Java data structures and alg.

1. QUESTION 1a Write a recursive "Merge" method meeting this specification: Inputs: a sorted list L1 and a sorted list L2. Outputs: a sorted list that is the merging of L1 and L2, and, the number of times two list elements were compared during the merging process (call it C). The recursive Merge ...continues