Question

In a class of ‘n’ number of students, the number of girls is ‘m’. Write a Java program to create a class named Percentage to perform the following tasks: (i) Input the values of n and m (Use Scanner Class) (ii) Calculate and display the following: Total no. of boys, percentage of boys and girls in the class.​

Answer 1

Answer:

package collection;

import java.util.Scanner;

public class SwapNumber {

public static void main(String[] args) {

Scanner sc= new Scanner(System.in);

int m,n;

System.out.println("Enter no. of boys in class");

m=sc.nextInt();

System.out.println("Enter no. of girls in class");

n=sc.nextInt();

System.out.println("Percentage of boys in class: "+(double)m/(m+n)*100+"%");

System.out.println("Percentage of girls in class: "+(double)n/(m+n)*100+"%");

}

}

Output:

Enter no. of boys in class

50

Enter no. of girls in class

123

Percentage of boys in class: 28.901735%

Percentage of girls in class: 71.09826589595376%