Java Program to Calculate the Percentage

In this quick tutorial, we will create a Java program to calculate the percentage.
But first, let’s define how to calculate percentage mathematically.

Mathematical Formula

In mathematics, a percentage is a number or ratio expressed as a fraction of 100. It’s often denoted using the percent sign, “%”.
percentage = (x/y)*100

Java Program to Calculate the Percentage

Let’s build a Java program to calculate Student marks:
package net.javaguides.corejava;

import java.util.Scanner;

/**
 * Java Program to Calculate the Percentage 
 * @author javaguides.net
 *
 */
public class PercentageProgram {

    public double calculatePercentage(double obtained, double total) {
        return obtained * 100 / total;
    }

    public static void main(String[] args) {
        PercentageProgram pc = new PercentageProgram();
        Scanner scanner = new Scanner(System.in);
        System.out.println("Enter obtained marks:");
        double obtained = scanner.nextDouble();
        System.out.println("Enter total marks:");
        double total = scanner.nextDouble();
        System.out.println(
            "The percentage obtained: " + pc.calculatePercentage(obtained, total));
        scanner.close();
    }
}
Output:
Enter obtained marks:
67

Enter total marks:
100

The percentage obtained: 67.0

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Comments

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