Arrays Change the program AirlineDriver.java to assign passenger seats in an airplane. Chesapeake Airlines is a small commuter airline with seats for 20 passengers in 5 rows of 4 seats each. Here is the layout: 1 ABCD 2 ABCD 3 ABCD 4 ABCD 5 ABCD The user enters the row (1-5) and the seat (A- D). The seat entry may be lowercase. Use this code to enter the seat System.out print(" Enter row and seat " seat scan.nextLine(): seat.?? C= seat.?? What will you need to do to change the character (A, B, C, D) in the variable c to the column index in the array? Check the program example on page 347. Ihave included the LetterCount program in the Chapter Seven Activities. The program checks the array to see if the seat is available. An X in the array indicates the seat is not available. If the seat is available, assign an X to that position in the array. If it's unavailable, display a message to the passenger. Use the displaySeats method after each row/seat entry. After some seats are assigned, the layout may look like this: 1 XBCX 2 ABCD 3 AXCX 4 ABCD 5 ABCD Continue processing requests until the user enters -1 for seat.

In C, what does the malloc() method do? Group of answer choices Dynamically allocates a block of memory with the specified size. Releases a block of memory with the specified size. Reconfigures a block of memory with the specified size. Determines the amount of memory used by a given structure variable

Develop an algorithm and write a C++ program that counts the letter occurrence in the string; make sure you use call by reference to the array of a class with letter and count as private member attributes when return from parse function. For the class member methods, provide the public accessor and modifier as well as print functions for the private member attributes. Write a test program that reads a C-string and displays the number of letters [a-z] and number of numbers [0-9] in the string. In addition to that, you need to output the histogram of the letter and count array. Here is a sample run of the program: <Output> Enter a string: 2023 is coming The number of letters in 2023 is coming is 8 The number of numbers in 2023 is coming is 4 ---- Histogram ---- Char Count 0 1 2 2 3 1 c 1 g 1 i 2 m 1 n 1 /* not a completed output */ <End Output>

a java assignment about 4 used defined exception using array loop based on real life scenario. (use only java)

Assignment-3 With the help of a C program show how to typecast a void * to an int * . Attach the code and output and upload the file on classroom.

C++ Attached is the question

Please answer in C++ and give explanation LAB 17.1-B Linked List Read the internal documentation for class ItemList carefully. Fill in the missing code in the implementation file, being careful to adhere to the preconditions and postconditions. Compile your program. ------------------------------------------------------------------------------------------------------------------------------- class ItemList { private: struct ListNode { int value; ListNode * next; }; ListNode * head; public: ItemList(); // Post: List is the empty list. bool IsThere(int item) const; // Post: If item is in the list IsThere is // True; False, otherwise. void Insert(int item); // Pre: item is not already in the list. // Post: item is in the list. void Delete(int item); // Pre: item is in the list. // Post: item is no…