Java - How to use a variable(non hardcoded) value in printf statement after decimal point?

Question

I want to use a non hard coded value after decimal point in printf statement . Below is my code . Instead of 4 I want to set to x.

int x = sc.nextInt();
double d=103993d/33102d;
System.out.printf("%.4f", d);

Answer 1

Declare a variable and concatenate with the formatting string as below

double d=103993d/33102d;
int x=9;
System.out.printf("%."+x+"f", d);

OUTPUT:-

3.141592653