In this tutorial you will learn about the Java Program to Find exponents and its application with practical example.
In this tutorial, we will learn to create a Java Program to find Exponent 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.
- In-built functions.
Exponent of a Number
Let’s take a value at base : 2
Now take a value at exponent : 3
So power(Exponent) of any number is basen given as base*base*base (3-times). Here base is called base and 3 is called the exponent.
are some example of exponents.
Java Program to Find exponents
In this program we will find exponent of any given number by user using loop. We would first declared and initialized the required variables. Next, we would prompt user to input the number and power of number .Then we will find the power of given number.
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// java program to calculate power of a numebr import java.util.Scanner; public class Test{ public static void main(String[] args) { //declaring and initiating variables System.out.print("Enter base: "); Scanner s = new Scanner(System.in); int base = s.nextInt(); System.out.print("Enter Power: "); Scanner sc = new Scanner(System.in); int pow = sc.nextInt(); // Finding the exponent and printing result.. System.out.println("Exponent is ="+Math.pow(base, pow)); } } |
Output
Note : The above program works only if the Power is a positive integer (number).
In the above program, we have first declared and initialized a set variables required in the program.
- base = it hold the value of base
- pow = it will hold the power.
Let see the logic behind the the program
- Take value of “base and exponents(Power)” from user, and put it in two variables base and pow respectively.
Here we will to use the “Math.pow(base, pow))” function which is define in Java standard library.it will take two parameter as a arguments base and power and returns the exponent of value supply to it.
At last print the resultant output as shown in image above.
