## How do you write square root in Java?

Java. lang. Math. sqrt () Method

1. Description. The java.lang.Math. sqrt (double a) returns the correctly rounded positive square root of a double value.
2. Declaration. Following is the declaration for java.lang.Math. sqrt () method public static double sqrt (double a)
3. Parameters. a − a value.
4. Return Value.
5. Exception.
6. Example.

## How do you program a square root?

To find the square root of int, float or long double data types, you can explicitly convert the type to double using cast operator. int x = 0; double result; result = sqrt (double(x));

## How do you code a square in Java?

Java: How to square a number

1. 1) Square a number by multiplying it by itself. This is how you square a number by multiplying it by itself: int i = 2; int square = i * i;
2. 2) Square a number with the Math. pow method.
3. More power multipliers. In general I just multiply the number by itself to get the squared value, but the advantage of the Math.

## What is NaN in Java?

In Java, ” NaN ” stands for “not a number” and signifies that a value is not defined. ” NaN ” is not an exception error, but a value that is assigned. For example, imaginary numbers like the square root of negative numbers or zero divided by zero will both print ” NaN ” as the result. Take a look at the example below.

## How do you calculate power in Java?

Read the base and exponent values from the user. Multiply the base number by itself and multiply the resultant with base (again) repeat this n times where n is the exponent value.

## How do you code a square root in C++?

Program for Square Root in C++

1. using namespace std;
2. int main()
3. float sq,n;
4. cout<<"Enter any number:";
5. cin>>n;
6. sq= sqrt (n);
7. cout<<" Square root of "<
8. return 0;

## How do you square a number?

When you multiply a number by itself, the result is a square number:

1. x 1 = 1 7 x 7 = 49.
2. x 2 = 4 8 x 8 = 64.
3. x 3 = 9 9 x 9 = 81.
4. x 4 = 16 10 x 10 = 100.
5. x 5 = 25 11 x 11 = 121.
6. x 6 = 36 12 x 12 = 144.

## How do you square in programming?

C Program to calculate the square of a number:

1. #include
2. int main()
3. {
4. printf(“Please Enter any integer Value: “);
5. scanf(“%f”, &number);
6. square = number * number;
7. printf(” square of a given number %.2f is = %.2f”, number, square );
8. return 0;

## How do you find a perfect square in Java?

CheckPerfectSquareExample1. java

1. import java.util.Scanner;
2. public class CheckPerfectSquareExample1.
3. {
4. //user-defined method that checks the number is perfect square or not.
5. static boolean checkPerfectSquare(double number)
6. {
7. //calculating the square root of the given number.
8. double sqrt=Math.sqrt(number);

## IS 400 a perfect square?

400 is a perfect square. Because 20 * 20 = 400. 