why it gives me error?

Question

public class Program {
public static void main(String[] args) {
int [ ] myArr = {6, 42, 3, 7};
int sum=0;
for(int x=1; x<=myArr.length; x++) {
sum += myArr[x];
}
System.out.println(sum);
}
}

Answer 1

Because you are trying to access invalid element
arrays first element is 0
exp:
int[] arr={1,2,3};//length =3;
arr[0]=1;
arr[1]=2;
arr[2]=3;

correct like this

...
for(int x=0;x<arr.lenght;x++)
...

Answer 2

your problem is with sum += myArr
try changing it

Answer 3

I did it wrong because I didn't look at the index. ty😁

Answer 4

look at your code in
for(int x=1; x<=myArr.length; x++)
the index of array start from 0 so you have to make for like this
for(int x=0; x<=myArr.length; x++)
now here is an other problem the array end with index (arraylength-1)
so you
here in code when x= myArr.length
will access
myArr[x]
which means
myArr[myArr.length ]
which does not exist
so you have to make the code like this
for(int x=0; x<myArr.length; x++)
or like this
for(int x=0; x<=myArr.length-1; x++)

Answer 5

hi