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What is Java Exponent? How to do exponents in Java?

What is Java Exponent? How to do exponents in Java?

Do you know What is Java Exponent? Have you ever thought about how to do exponents in java? Today we are going to experience how to do an exponent in java.

But before we jump into the programming aspect of this post, first we need to know about the exponents.

Exponent is a simple mathematical term, which we have done in our childhood. There are a base number & power of that number provided. And we have to multiply the base number by itself, the same number of times as the power.

Let’s take an example

If the base number is 5 & the power of the base number is 2. Then the exponent of that number will be 25. That means we have multiplied 5 two times. This is the process of getting exponents.

Now, one question may arise in mind why do we need exponents in java?

Let’s assume one situation:

In a program, if a user finds the base is 2 & power is also 2. Then it will be an easy calculation. The user will do 2*2 & provide the output.

But when you have to calculate the exponent where the base is 8 & power is 7. Then it is not applicable to do 8*8*8*8*8*8*8. Writing codes in such a manner will hamper the beauty of that code.

So what to do in these scenarios?

In these cases, java exponentiation performs a big role. The only solution is to take the help of java exponents.

But, is this thing can be implemented? Yes, very easily!

 

What is Java Exponent? Know all about exponents in Java.

 

Exponents in Java

“What is Java Exponent” is a very basic question. Like other programming languages, Java does not have an exponent operator. In the C programming language, we have an exponent operator. Whereas in Java there is a package & a method to perform it.

We have already visualized that the exponent performs a great job in programming. In java, we have a method to complete this task. This method follows the same algorithm which we used to do in our childhood.

For performing this method, we need to import one necessary package. This is Java. lang.Math. This package not only performs the exponents but also helps to find the maximum & minimum numbers, find the average of given numbers, etc.

 

How to do exponents in Java?

 

After knowing What is Java Exponent, it is time to know the ways to implement Java Exponent.

For implementing Exponents of Java, there are mainly two ways:

  • Using the pow() method,
  • Using loops.

In between these, using the pow() method will be a simpler one. Whereas, using a loop will be a difficult one. Also, it will consume more space & time, which is not good from the view of the algorithm.

Let us know each method one by one.

 

Exponents in Java using the pow() method?

 

At first, we will take inputs from the users using the scanner method. We will take the base value & the power as input.

In the in pow() method, two arguments we have to pass. One is the base number & another is the power of that number. The first argument is the base number. The second argument is power.

By default pow() method returns the double type. But we can type cast it to the Integer value.

General syntax is: Math.pow(base, power);

Code Example:

import java.util.Scanner;

import java. lang.Math;

public class Exponents {

public static void main(String[] args) {

// Creating One Scanner Object To Input The Data

Scanner myObj = new Scanner(System.in);

// Declaring Two Integer variables

    int base,power;

    // taking Base Value

    System. out.println("Enter Base"); 

    base = myObj.nextInt();

    // Taking Power value

    System. out.println("Enter Power"); 

    power = myObj.nextInt();

    // Double Result or Result In Floating Value

double result1 = Math.pow(base, power);

System. out.println("Floating Value Result: "+result1);

// Providing One Gap In Between Two Results

System.out.println();

// Type Casting To Integer Result

int result2 = (int)Math.pow(base, power);

System. out.println("Type Casting Value Result: "+result2);

}

}

Let’s look at the output of the above code. Hence, we come to know how to do exponents in Java

Output Screen:

What is Java Exponent? 

 

Now let’s move forward with the other way to calculate the java exponentiation.

 

How to do exponents in Java using a loop?

 

In this process, we have to first take the base value & the power value from the users.

Then we have to run a For Loop or While Loop. This loop will run until it reaches the power value.

In every iteration of the loop, we have to multiply the base by itself. This multiplication will complete with the help of another third variable. Also, if you want to learn about the exponential operator in Java you can get more information.

Then as usual we will first print the float number value.

Then we will type and cast it to the integer value.

Code Example:

import java.util.Scanner;

public class ExponentsLoop {

public static void main(String[] args) {

// Creating One Scanner Object To Input The Data

Scanner myObj = new Scanner(System.in);

// Declaring Two Integer variables

    int base, power, i;

    double result=1;

    // taking Base Value

    System. out.println("Enter Base"); 

    base = myObj.nextInt();

    // Taking Power value

    System. out.println("Enter Power"); 

    power = myObj.nextInt();

    // Starting The Loop For Calculating The Exponential

    for(i=0;i<power;i++)

    {

    // Multiplying The Base With Itself

    result=result*base;

    }

    // Double Result or Result In Floating Value

    System. out.println("Floating Value Result: "+result);

    // Providing One Gap In Between Two Results

System.out.println();

// Type Casting To Integer Result

int result1 = (int)result;

System. out.println("Type Casting Value Result: "+result1);

}

}

Let's look at the output of the above code. Hence, we come to know how to do exponents in Java

Output Screen:

exponents in Java using a loop

 

It is suggested to move only with the pow() method. Using the loop method will increase the space & time consumption of the code. That will affect the efficiency of the code.

 

Playing With Exponents: Learn different methods 

 

Though it is not related to what is java exponent, still these methods play an important role.

Along with the pow() method, there are many other methods. These methods help to reduce the work related to the power of any base numbers.

We can list down these methods:

  • Exp() method: 

This method returns the Euler’s Number. 

It has general syntax as Math. exp(num);

This means if the user provides Math. exp(2), it will consider it as e2.0

  • Sqrt() method:

As the name suggests, it helps to find out the square root of any number.

It has general syntax as Math.sqrt(num);

This means, that if the user provides Math. sqrt(4), it will square root the number 4 & returns the result.

Conclusion:

As we saw exponentials are very important in our daily use.

What is the java exponent, how to do exponents in java will help you further in the future.

When you will move towards the difficult calculations, exponents in java will help you much.

If in the future, you stuck to remembering the syntax & formulas. You just try to remember, “What is java exponent”. It will help a lot.

Also, if you guys are looking to get help with Java Assignments or Programming then you can use our Java Homework Help Services.

If you are looking for Final Year Java Project Ideas then you can contact us as well.

Sanjana Grover
Sanjana Grover

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