Determine whether the following array declarations are valid. If a declaration is valid, write VALID. If it isinvalid, you can make assumptions and write a correct declaration. doublel] sales = new double[40.5]; *Your answerint[75] list;Your answerint) test = new int[-10]: *Your answerint size; double[) list = new double[size): *Your answerint x, y; char[I] board = new board[x[yl: *Your answer

1):- Invalid [](double sales[]=new double[40.5] 2):- invalid int list[75]; 3):- Invalid…

Answered: ales new dou Your answer int[75] list:…

ales new dou Your answer int[75] list: * Your answer int) test = new intl-10): "Your answer int size: double() list = new double[size): * Your answer int x, y; char[][] board = new board(x]lyl: *

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Look at the following array definition String[] Students= {"St1", "St222", "St3333"}; what will be returned by Students.length what will be returned by Students[1].length() how many total elements can be saved in this array
POEM List[POEM_LINE] PRONUNCIATION_DICT Dict[str, PHONEMES] Do not add statements that call print, input, or open, or use an import statement. Do not use any break or continue statements.
Lottery number generator: Write a program that generates aseven-digit lottery number. The program should have a loopto generate seven random numbers, each in the range 0through 9 and assign each number to a list element.2. Write another loop to display the contents of the list.3. Tip: You will need to create/initialize your list before you canassign numbers to it.4. Use program 7-1 sales_list as an example. You will start witha seven-digit lottery number that contains all zeros. Then inyour loop, you will assign a random number instead ofgetting the data from the user.Turn in your program to the practice assignment link in coursecontent.
python LAB: Subtracting list elements from max When analyzing data sets, such as data for human heights or for human weights, a common step is to adjust the data. This can be done by normalizing to values between 0 and 1, or throwing away outliers. Write a program that adjusts a list of values by subtracting each value from the maximum value in the list. The input begins with an integer indicating the number of integers that follow.
For any element in keysList with a value greater than 50, print the corresponding value in itemsList, followed by a comma (no spaces). Ex: If the input is: 32 105 101 35 10 20 30 40 the output is: 20,30, 1 #include 2 3 int main(void) { const int SIZE_LIST = 4; int keysList[SIZE_LIST]; int itemsList[SIZE_LIST]; int i; 4 6 7 8 scanf("%d", &keysList[0]); scanf ("%d", &keysList[1]); scanf("%d", &keysList[2]); scanf("%d", &keysList[3]); 10 11 12 13 scanf ("%d", &itemsList[0]); scanf ("%d", &itemsList[1]); scanf("%d", &itemsList[2]); scanf ("%d", &itemsList[3]); 14 15 16 17 18 19 /* Your code goes here */ 20 21 printf("\n"); 22 23 return 0; 24 }
def city_dict(adict): """ Question 6 -Given a dictionary that maps a person to a list of countries they want to travel to, return a dictionary with the value being the list sorted by the last letter in each countries name. If two countries have the same last letter, sort by the first letter. -For an extra challenge, try doing this in one line (Optional). Args: adict (dict) Returns: dict >>> city_dict({"Pablo": ["Belgium", "Canada", "Germany"], "Athena": ["Italy", "France", "Egypt"], "Liv": ["Japan", "Bolivia", "Greece"]}) {'Pablo': ['Canada', 'Belgium', 'Germany'], 'Athena': ['France', 'Egypt', 'Italy'], 'Liv': ['Bolivia', 'Greece', 'Japan']} >>> city_dict({"Jacob": ["Bahamas", "Brazil", "Chile"], "Lexi": ["Colombia", "Finland", "Panama"], "Emily": ["Ireland", "Russia", "Kenya", "Jordan"]}) {'Jacob': ['Chile', 'Brazil', 'Bahamas'], 'Lexi': ['Colombia', 'Panama', 'Finland'], 'Emily': ['Kenya',…
In order to print each item in a list, create a function called Multiply2 that multiplies the list's elements by 2. For instance: mylist=[1,2,3,4] In this case, multiply2(mylist) returns the following results: 2 4 6 8 The function requires just one argument, which is the list on which the operation is to be done.
5. List Member Deletion Modify the list class you created in the previous programming challenges by adding a function to remove an item from the ist and by adding a destructor: void zemove (double x) : Linkedtist (02 Test the class by adding a sequence of instructions that mixes operations for adding items, removing items, and printing the list.
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int size; double[] list = new double[size]; Your answer
List<String> name = new List<string> { "Jane", "Sue", "Annie" };name.Add("Lisa");MessageBox.Show(name.Count.ToString()); 3 4 5
What distinguishes When will Array be preferred to Array List an array from an array list?