In this tutorial you will learn about the Java Program to find square root of a number without sqrt method and its application with practical example.
In this tutorial, we will learn to create a Java Program to find square root of a number without sqrt method using Java programming.
Prerequisites
Before starting with this tutorial we assume that you are best aware of the following Java programming topics:
- Java Operators.
- Basic Input and Output function in Java.
- Class and Object in Java.
- Basic Java programming.
- If-else statements in Java.
- For loop in Java.
- User Define functions
What is square root?
Square root of number that we multiply the number by itself to get the original number.Rather we can say that “square root of a number” is the value of power 1/2 of that number.
We are going to use following Formula to find the square root of a number.
sqrt=(sqrt_num+(number/sqrt_num))/2;
where sqrt_num is agiven number by user…
Java Program to find square root of a number without sqrt method
In this program we would find the Square root of a given number .First of all we take a vaue form user and find the Square root of a number.Let have a look at the code.
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//java program to fin square root of a given number import java.util.Scanner; public class SquareRoot { public static void main(String[] args) { // declaring variable and taking values from user... System.out.print("Enter any number to find Square root "); Scanner sc = new Scanner(System.in); int number = sc.nextInt(); System.out.println("The square root of "+ number+ " is: "+SRoot(number)); } //method to find square root// public static double SRoot(int number) { double temp; double sqrt=number/2; do { temp=sqrt; sqrt=(temp+(number/temp))/2; } while((temp-sqrt)!= 0); return sqrt; } } |
Output
Square root of a number.
In the above program, we have first declared and initialized a set variables required in the program.
- number= it will hold entered number.
- temp = it will hold temporary number.
- sqrt= it will hold the result.
After declaring variables we take a value from user and find Square root of a number..
after getting value from user we pass this value to a method named Sroot(number) where we calculate Square root of a number.
this function calculates square root and return the square root a provided number and we will print the result.
