This program outputs a downwards facing arrow composed of a rectangle and a right triangle. the arrow dimensions are defined by user specified arrow base height, arrow base width, and arrow head width.
(1) modify the given program to use a loop to output an arrow base of height arrowbaseheight.
(2) modify the given program to use a loop to output an arrow base of width arrowbasewidth. use a nested loop in which the inner loop draws the *’s, and the outer loop iterates a number of times equal to the height of the arrow base.
(3) modify the given program to use a loop to output an arrow head of width arrowheadwidth. use a nested loop in which the inner loop draws the *’s, and the outer loop iterates a number of times equal to the height of the arrow head.
(4) modify the given program to only accept an arrow head width that is larger than the arrow base width. use a loop to continue prompting the user for an arrow head width until the value is larger than the arrow base width.
while (arrowheadwidth < = arrowbasewidth) {
system. out. println("enter arrow head width: ");
arrowheadwidth = scnr. nextint();
}

1. package newton’s method for approximating square roots (case study 3.6) in a function named newton. this function expects the input number as an argument and returns the estimate of its square root. the script should also include a main function that allows the user to compute square roots of inputs until she presses the enter/return key. 2. convert newton’s method for approximating square roots in project 1 to a recursive function named newton. (hint: the estimate of the square root should be passed as a second argument to the function.) 3. elena complains that the recursive newton function in project 2 includes an extra argument for the estimate. the function’s users should not have to provide this value, which is always the same, when they call this function. modify the definition of the function so that it uses a keyword parameter with the appropriate default value for this argument, and call the function without a second argument to demonstrate that it solves this problem. 4. restructure newton’s method (case study 3.6) by decomposing it into three cooperating functions. the newton function can use either the recursive strategy of project 1 or the iterative strategy of case study 3.6. the task of testing for the limit is assigned to a function named limitreached, whereas the task of computing a new approximation is assigned to a function named improveestimate. each function expects the relevant arguments and returns an appropriate value. 5. a list is sorted in ascending order if it is empty or each item except the last one is less than or equal to its successor. define a predicate issorted that expects a list as an argument and returns true if the list is sorted, or returns false otherwise. (hint: for a list of length 2 or greater, loop through the list and compare pairs of items, from left to right, and return false if the first item in a pair is greater.)

Who can provide you with a new password when you have forgotten your old one? your provide you with a new password in case you forget your old one.

This chapter lists many ways in which becoming computer literate is beneficial. think about what your life will be like once you’re started in your career. what areas of computing will be most important for you to understand? how would an understanding of computer hardware and software you in working from home, working with groups in other countries and contributing your talents.