Create a triangle of summations Example Input: [2,4,5,7,9] Start with a list of numbers Create a list of the summation of the first two numbers, then the next two. Output: [85] [36, 49] [15, 21, 28] [6, 9, 12, 16] [2, 4, 5, 7, 9] Continue building new lists until there is only 1 number left Be sure to print your list during each iteration of your function MUST USE RECURSION!!

Create a triangle of summations Example Input: [2,4,5,7,9] Start with a list of numbers Create a list of the summation of the first two numbers, then the next two. Output: [85] [36, 49] [15, 21, 28] [6, 9, 12, 16] [2, 4, 5, 7, 9] Continue building new lists until there is only 1 number left Be sure to print your list during each iteration of your function MUST USE RECURSION!!

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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import java.util.ArrayList;import java.util.Arrays; public class PS07A{/*** Write the method named mesh.* * Start with two ArrayLists of String, A and B, each with * its elements in alphabetical order and without any duplicates. * Return a new list containing the first N elements from the two * lists. The result list should be in alphabetical order and without * duplicates. A and B will both have a size which is N or more. * Your solution should make a single pass over A and B, taking * advantage of the fact that they are in alphabetical order, * copying elements directly to the new list.* * Remember, to see if one String is "greater than" or "less than" * another, you need to use the compareTo() method, not the < or > * operators. * * Examples:* mesh(["a","c","z"], ["b","f","z"], 3) returns ["a","b","c"]* mesh(["a","c","z"], ["c","f","z"], 3) returns ["a","c","f"]* mesh(["f","g","z"], ["c","f","g"], 3) returns ["c","f","g"]* * @param a an ArrayList of String in alphabetical…
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