2. A teacher made a list of all of the marks in the class. Print out the following things. 1. All of the marks in the class. 2. Every second mark in the class. 3. Every third mark in the class. 4. The marks backwards. 5. The marks vertically down the pages. 6. The marks with a % sign after them. Make sure that each entry has a title before it.

python program - Let A be an array with arbitrary length. What is the syntax for shifting A by 5 steps to the left (note the direction)? - What is the syntax for calculating the correlation between A and A shifted by 10 steps to the right?

Declare 2D array whose size and elements must be according to the desire of user then perform the following functions on it Display a lower triangular matrix. Find the sum of an upper triangular matrix. DO IT IN C++

Write a Java to do the following USING ARRAYS (NO HARD CODING) MUST  USE METHODS Arrays And Functions (Methods)   hint write and test one module at the time 1) Input 15 integers  (input validation , all numbers must be between -20 and 50 inclusive ) ,create a method/function. 2 methods/functions one for inputand one for input validation 2) Find and display all negative number in the array, create a method/function. 3) Display every other element in the array, create a method/function 4) Find the Sum of all positive  numbers in the Array, create a method/function 5) a method/function to display the original array 6) include a menu using the switch statement to enable the user to select one of the the options (2,3,4). 7) include a loop to restart the menu