Having trouble finding the logic

Question

I would like to ask why the output of both syntax resulted in 25 ?

public class MyClass1 {
public static void main(String[]args){
int[] odd = {1,3,5,7,9};
int sum=0;

for(int x=0;x<odd.length;x++){

sum= sum+odd[x];
}
System.out.println(sum);

}

}

----------------------------------------------------

public class MyClass1 {
public static void main(String[]args){
int[] odd = {1,3,5,7,9};
int sum=0;

for(int x=0;x<odd.length;x++){

sum= sum+odd[2];
}
System.out.println(sum);

}

}

Answer 1

The first case you're iterating over all elements of the array => 1+3+5+7+9 = 25. In the second case you are adding the odd[2] =>5 exactly 5 times (5 iterations in the loop) so the result is 5*5 = 25 again.

Answer 2

Yes, that's right.

Answer 3

thanks! so if i put odd[1] then that'd be 3+3+3+3+3 =15 then?