In this tutorial you will learn about the Java Program to Find Square Root of a Number and its application with practical example.
In this tutorial, we will learn to create a Java program to Find square Root of a number 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
- Class and Object.
- Basic Java programming.
- if-else statements.
- Switch case.
- Nested if-else Statements.
- Java Scanner class.
What Is Square root?
Method of Finding “Square Root” is that numbers are multiplying by itself Twice “6 * 6= 36”. Where a square root of a number on getting multiplied by itself gives the original √36 = 6.
A square root of a number a is a number b such that b² =a.
Java Program to Find Square Root of a Number
In this our program we will create a program to find “Square Root” of a given number . We would first declared and initialized the required variables. Next, we would prompt user to input value.Later in the program we will find square root.
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// java program to caluclate square root... import java.util.Scanner; public class SquareRoot { public static void main(String[] args) { System.out.print("Enter a number: "); Scanner sc = new Scanner(System.in); // taking values form user.. int number = sc.nextInt(); System.out.println("The square root of "+ number+ " is: "+square_root(number)); } //declaringa method for finding square root.. public static double square_root(int number) { //declaring variables... double temp; double sr=number/2; do { temp=sr; sr=(temp+(number/temp))/2; } while((temp-sr)!= 0); return sr; } } |
Output
Square Root
In the above program, we have first declared and initialized a set variables required in the program.
- number = it will hold given number.
- temp= it will hold temporary value of a number
- sr= it will square root of a number.
We going to use the following formula to find the square root of a number.
in our program we have created a method square_root(number), in this method we have written a equation for finding the square root of a number.and for equation we have used do while loop.function returns the square root of a given number to main method
Where we will print the required square root of a given number as shown in image.
