need help... **Question 18****Select the correct answer:**Roger wants to check whether a user has or has not entered data in a text field. How can he perform this validation?- **A.** Check if the value contains an escape character.- **B.** Check if the value is the same as the default.- **C.** Check if the value is numeric.- **D.** Check for a null character.Below the question and answer choices, two buttons are present for interaction:- A red button labeled "Reset"- A blue button labeled "Next"This indicates the usual process of navigating through multiple-choice questions, potentially in a quiz or test format typically found in online learning platforms. The user is expected to select one of the options and then proceed to the next question or reset their choice.

The text field may be contain a numeri value or character values. escape character is used for…

Select the correct arower. Roger warts to check whethea user has or has not entered data in a text neld, How can he perform thes validation? OA Check if the value contains an escape character, OB Check if the value is the same as the default. OC Oeck it the value is numeric. OD Check for a null character

Select the correct arower. Roger warts to check whethea user has or has not entered data in a text neld, How can he perform thes validation? OA Check if the value contains an escape character, OB Check if the value is the same as the default. OC Oeck it the value is numeric. OD Check for a null character

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter9: Advanced Array Concepts

Section: Chapter Questions

Problem 2GZ

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Include an inner listener class to handle the events from the Save Record button. WhenSave Record button is clicked, new customer record is inserted into the table named“CUSTOMER” and display a message “New Customer Record Inserted” in a dialog box.Include another anonymous inner listener class to handle the events from the Reset button.When Reset is clicked then clear all the text fields and place the cursor in the first text fieldto allow the user to re-enter the correct values and Write a code that includes an exception handler that deals with duplicate records (e.g. sameCustomer ID.) and database error (e.g. Error establishing a database connection).
2- Assume that you are developer for photogrammetry and image processing in a company. You are given a task to develop a method that deals with the objects in a scene. Assume that a camera captured binary images, as shown below. The objects do not overlap or not in contact, but may be close to each other. They can be in any size or shape. Binary image Write the pseudo-code algorithm that automatically counts only the number of objects with hole(s) and the shape of the object is not circle. Also present a block diagram of your algorithm to make easy to understand your answer. If there any, please also define any assumptions you perform in your algorithm (about the size/shape/tone/hole etc. of the object). code!) (No need to implement a python
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File names: color_square.py, chessboard.py, test_squares.py Positions on a chess board are identified by a letter and a number. The letter identifies the column; the number identifies the row. See the image below. You will provide the functions that allow us to determine: if a chessboard square is either black or white, given its coordinates. If the row/column is valid or not for the standard chessboard For example, if we pass in “d” for the column and 4 for the row, your function that determines color should return the string: “BLACK”. If we pass in "k" for the column to your function that validates columns, that function should return the boolean False. Requirements: Your function for validating the column should be able to accept upper or lowercase strings as parameters. Your functions for validating the row should be able to accept integers or strings as parameters. Your function that determines black-or-white may assume that the input has been validated prior to us calling…
//18. refreshPosts//a. Dependencies: removeButtonListeners, deleteChildElements, displayPosts,//addButtonListeners//b. Is an async function//c. Receives posts JSON data as a parameter//d. Call removeButtonListeners//e. Result of removeButtonListeners is the buttons returned from this function//f. Call deleteChildElements with the main element passed in as the parameter//g. Result of deleteChildElements is the return of the main element//h. Passes posts JSON data to displayPosts and awaits completion//i. Result of displayPosts is a document fragment//j. Call addButtonListeners//k. Result of addButtonListeners is the buttons returned from this function//l. Return an array of the results from the functions called: [removeButtons, main,//fragment, addButtons] Still fails help please const refreshPosts = async (posts) => { if (!posts){ return undefined; } let buttons = removeButtonListeners(); let myMain = deleteChildElements(document.querySelector("main")); let…
✓ Exercises Exercise: Write a method _ and _ that computes the region representing the intersection of two regions. Exercise: Write a method _contains__, which checks whether a n-dimensional point belongs to the region. Remember, a point belongs to the region if it belongs to one of the rectangles in the region. ✓ Membership of a point in a region #@title Membership of a point in a region def region_contains (self, p): ### YOUR SOLUTION HERE Region._contains = region_contains [ ] # Tests 10 points. assert (2, 1) in Region (Rectangle((0, 2), (0, 3)), Rectangle((4, 6), (5,8))) assert (2, 1) not in Region (Rectangle((0, 1), (0, 3)), Rectangle((4, 6), (5, 8))) Exercise: Write a method _le_ for regions such that R <= S if the region R is contained in the region S. You can test this by checking that the difference between R and S is empty.
Why does a Random object's intended seed value correspond to the system time?
The Problems - contains only problems from the last 2 contests Separate Un-Attempted, Attempted and All cards Problem Difficulty Rating - The Featured drop-down menu has different difficulty ranges so you can try problems that best suit your experience. Popular topics and brands Like most users, Chef didn't know that he could add problems to his personal to-do list by clicking the magic "+" symbol in the upper right corner of each problem page. But once he found out about it, he went crazy and added a lot of problems to his to-do list without looking at their difficulty rating. Rajesh is a beginner and ideally should only try to solve problems strictly below 10001000. Given the difficulty rating list of problems in Chef's to-do list, please help him determine how many of these problems Chef should remove from his to-do list so he is left with only problems with a difficulty rating of less than 10001000. Note: Please answer the question in Python only: Input 1 4 999 1000 1001 1002…
Implement the "Add player" menu option. Prompt the user for a new player's jersey number and rating. Append the values to the two vectors. Ex: Enter a new player's jersey number: 49 Enter the player's rating: 8
Task 2 Get Binary 1: Implement the get_bin_1 function as directed in the comment above the function. If the directions are unclear, run the code, and look at the expected answer for a few inputs. In order to be able to compare your solution to the answer, you cannot simply print out the binary directly to the console. Instead, you have been provided with a very rudimentary stringbuilder implementation that allows you to build a string one character at a time, without the ability to erase. There are comments at the top of the code explaining how to use the stringbuilder, however you could also see how it is being used in task_2_check. Note: if you create a stringbuilder and append ‘a’, ‘b’, then ‘c’, the resulting string will be “abc” when printed. You are free to read through the stringbuilder implementation, but it is quite complicated in order to make it easy to use. As specified in the comment, you may not use division (/) or mod (%) to implement this function (as the check…
Examine the code below. Then, write a line of code to replace the erroneous line. btnMarvelProgram.Enabled = True picSpiderman.Visibilty Enable picThor.Visible False %D
Software used is Visual Basic.