### Find square root in java without using any system function

import java.util.Scanner; public class Sqrt { public void getTheSqrt( int n ) { // double a = (eventually the main method will plug values into a) double a = (double) n; double x = 1; // For loop to get the square root value of the entered number. for( int i = 0; i < n; i++) { x = 0.5 * ( x+a / x ); } System.out.println("sqrt of " + a + " is " + x); } // Begin method main.. public static void main(String[] args) { // Creating an object from "Scanner" to input data. Scanner Sa = new Scanner(System.in); Sqrt S = new Sqrt(); //Asking the user to input the number we want to find its square root. System.out.println("Enter n: "); int n = Sa.nextInt(); // Calling the method that'll calculate the square root of the given number. S.getTheSqrt( n ); } // End method main }