Monday, 19 December 2016

Java Program For Calculate Percentage Of 5 Subjects

Problem:- Java Program For Calculate Total Marks Of 5 Subjects And percentage.means yo have to give a variable size of a subject like 2,3,5 and more subject as the user wants and you need to calculate the percentage of marks and also print the marks of each subject.

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Logic:- First we will ask the user for the total number of the subject after that we will enter marks of all those subjects. Now we will calculate a percentage of marks and print student marks, percentage, and Grade of Student. Percentage formula is given Below.

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Percentage of Marks = (all subject marks sum) / Total Subject *100.

Explanation:- For this problem, I am taking 5 subjects. Now first user enter number of the subject of a student after that enter all subject marks and store the marks in an array, see the below part of the code.

printf("\nEnter number of subject : \n");
scanf("%d", &n);

for(i=0;i<n;i++)
{
scanf("%d", &arr[i]);
}

Now next step to add or a sum of all subjects marks entered by the user.

for(i=0;i<n;i++)
{
sum=sum+arr[i];
}

Now apply the formula and print the output calculated by the formula given.

Percentage = ( sum * 100 ) / tmp;

printf("\nPercentage Of Student : %d\n", Percentage);


here tmp is a number of subject * 100.

Example:- Now take an example and check the output step by step. let's take 6 subjects in a semester and we have to calculate percentage out of total number 6 * 100 = 600.

Enter number of subjects: 6 // 6 is user input

Enter The Marks: 78 65 56 89 45 90

Percentage of a student: 70.5

Also Check:- Geeksforgeeks solution for School, Basic, Easy, Medium, Hard in C++.

Tip:- always read full post so you can understand better and check other solutions in different-different language. Share and like if you like and I also respect suggestion if you want any modification in the post or you have any better suggestion please let me know.


See Also:- C++ Program For Calculate Percentage Of 5 Subjects

Solution:- 

/* Program By Ghanendra Yadav
    Visit http://www.programmingwithbasics.com/
*/

import java.util.Scanner;

public class percentage
{
    public static void main(String args[])
    {
        int marks[] = new int[5];
        int i;
        float per,sum=0;

        Scanner sc = new Scanner(System.in);

        System.out.print("Enter The 5 Subject Marks : ");
        for(i=0; i<5; i++)
        {
            marks[i] = sc.nextInt();
            sum = sum + marks[i];
        }

        per = (sum/500) * 100;

        System.out.print("\nStudent Percentage is = " +per+ "%\n\n");
    }
}


See Also:- C Program For Calculate Percentage Of 5 Subjects


Output:-


Java Program For Calculate Percentage Of 5 Subjects


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