Number of digits after decimal point.

Question

Hi,
Here is a small program which takes x1 and gives the square root of x1, For e.g for 2 it prints 1.4142135623730951
Suppose I need to have only one decimal place i.e 1.4 then how do I get this.
import java.util.*;
class MySquare {
public static void main(String args[]) {
double x1 = 2;
double x2 = Math.sqrt(x1);
System.out.println("Square root of x1 " + (x2));
Output of this is:
Square root of x1 1.4142135623730951

Answer 1

try:
int whole = (int)x2;
int decimal = ((int)(x2*10)) - whole*10;
System.out.println("Square root of x1 " + whole +"."+decimal);p.s. this is untested, but it gives you an idea