This is a method: public static void mystery2(int[] a, int[]b) { for (int i = 0;

Question

This is a method: public static void mystery2(int[] a, int[]b) {    for (int i = 0; i<a.length;i++) {       a[i] =a[ 2* i % a.length] - b[3*i%b.length];       } } What are the values of the elements in array a1 after thefollowing code executes? int[] a1 = {2,4,6,8,10,12,14,16); int[] a2 = {1,1,2,3,5,8,13,21); mystery2(a1,a2) I KNOW THE ANSWER IS: a1:{1,3,-3,13,-4,-24,-6,-14} a2:{1,1,2,3,5,8,13,21} I DO NOT KNOW HOW TO GET TO THE FINALANSWER. PLEASE EXPLAIN THE LINES HIGHLIGHTED IN RED WITH STEP BYSTEP INSTRUCTIONS. This is a method: public static void mystery2(int[] a, int[]b) {    for (int i = 0; i<a.length;i++) {       a[i] =a[ 2* i % a.length] - b[3*i%b.length];       } } What are the values of the elements in array a1 after thefollowing code executes? int[] a1 = {2,4,6,8,10,12,14,16); int[] a2 = {1,1,2,3,5,8,13,21); mystery2(a1,a2) What are the values of the elements in array a1 after thefollowing code executes? int[] a1 = {2,4,6,8,10,12,14,16); int[] a2 = {1,1,2,3,5,8,13,21); mystery2(a1,a2) I KNOW THE ANSWER IS: a1:{1,3,-3,13,-4,-24,-6,-14} a2:{1,1,2,3,5,8,13,21} I DO NOT KNOW HOW TO GET TO THE FINALANSWER. PLEASE EXPLAIN THE LINES HIGHLIGHTED IN RED WITH STEP BYSTEP INSTRUCTIONS. a1:{1,3,-3,13,-4,-24,-6,-14} a2:{1,1,2,3,5,8,13,21} I DO NOT KNOW HOW TO GET TO THE FINALANSWER. PLEASE EXPLAIN THE LINES HIGHLIGHTED IN RED WITH STEP BYSTEP INSTRUCTIONS.

Explanation / Answer

public static void mystery2(int[] a, int[]b) {    for (int i = 0; i<a.length;i++){                                does the loop for as many elements of athere are
      a[i] =a[ 2* i % a.length] -b[3*i%b.length];        only 1st array (a1changes)     do the math and you get thefollowing indices
} What are the values of the elements in array a1 after thefollowing code executes? int[] a1 = {2,4,6,8,10,12,14,16); int[] a2 = {1,1,2,3,5,8,13,21); mystery2(a1,a2) What are the values of the elements in array a1 after thefollowing code executes? int[] a1 = {2,4,6,8,10,12,14,16); int[] a2 = {1,1,2,3,5,8,13,21); mystery2(a1,a2)

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