How can I do this in java? e=1+1÷1+1÷2+1÷3+...+1÷n

Question

I must get n from uesr

Answer 1

double e = 1;
for(int i = 1; i <= n; i++){
e += 1.0/i;
}

Answer 2

Oops Sorry!!

Answer 3

@Megatron 1/i will always be 0 for i>1 as your division contains two integer and so the result will be an integer. You should make at least one of them float/double.

Answer 4

Scanner sc = new Scanner (System.in) ;
int n = sc.nextInt();
First line creates object of scanner connected to your system input.
Second uses this object to gather from keyboard and store a value to n variable.

Answer 5

@lordmark
Posting the language would be helpful to others.
There are many languages in sololearn.

Answer 6

C++(or the basic logic in every language is nearly same)

cin>>n;
float e=1;
for(float i=1.0;i<=n;i++)
e+=1/i;

Answer 7

I should do it in java