why?

Question

public class Program {
public static void main (String [] args)
{ int [] myArr = {6, 42, 3, 7};
int sum = 0;
for (int x = 0; x <myArr.length; x ++)
{ sum + = myArr [x]; } System.out.println (sum); } }

Hi, why is there X in this command myArr [x];



Answer 1

x there using for index value. It will work like myArr[0], myArr[1],.... Upto myArr[myArr.length - 1]..
Revise the topic of how loop works.. Or complete it if not done to understand it better..
Instead x is temparary variable taken in loop, so you take any other names also instead of like n, m, i, j... Any valid name you can declare and use as used x.

Answer 2

see the "int x" inside of the for loop? Every iteration x is increases by 1 so the elements in the "myArr[]" array are selected using the the value of the x variable, then variable "sum" adds the values of each element to itself

Answer 3

Thank you so much