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# If balance is private,[B][U] what is the upper bound on the number of lines of code [/U][/B]which must be examined to make the change to the Account class? \ What is the "upper bound on the number of lines of code" referring to?

Basically, I am trying to solve a problem a textbook. The book requires me to use karel J robot to develop programming principles. So the problem is correctly the following code so that the robot will do this: attached This is the code I am suppose to fix. Currently the …

Hi! I am a student taking my first computer science course. The course uses Karel J the robot to teach object oriented programming. However, after acquiring the library I was not able to find the "methods" or "behaviours" for the robot. According to the lecture notes they are suppose to …

Hi, I am studying a php text book and it requires me to use the mail() function. However, there is no indication of how to achieve this. Please give me some subjection as to what I need to do. Such as, whether I need to setup a mailing server? or …

hi I am just wondering how I can test the mail( ) fucntion on my local host without any email program. Is it possible? Basically here is the code that I used(firefox shows the error message: Firefox doesn't know how to open this address because the protocol (c) isn't associated …

Hi, I need help with the server location my file path for the text file order.txt. according to my php text book, this is what they say I should use: @ $fp = fopen("$DOCUMENT_ROOT/../orders/orders.txt", 'rb'); however, this didn't work the server doesn't recognize where the file is located. This line …

Hi, recently I just started learning php as a complete beginner, and I wrote some codes that wasn't able to show up on my browser. Please check to see if there is anything wrong with it. This is the exactly what I used. <?php $prices= array( ‘Tires’=>100, ‘Oil’=>10, ‘Spark Plugs’=>4 …

Hi! I am a newbie, and recently I have installed php, apache, and mysql on my computer. However, after type some codes the browers left ÈpartÈ of the php code on the brower. It almost seem like the browser doesnèt recognize the code or something. below is what my browser …