Java

Write a program to print the roll number and average marks of 8 students in three subjects (each out of 100). The marks are entered by user.
Write a program to print the roll number and average marks of 8 students in three subjects (each out of 100). The marks are entered by user.





//print the roll number and average marks of 8 students in three subject(search out of 100). The marks are entered by user.

package oopjava;



import java.util.Scanner;



public class task2oopweek1 {

    public static void main(String[] args) {

        for (int i = 1; i <=8; i++) {

            Scanner input = new Scanner(System.in);

            System.out.println("Put roll number for no."+i+" student:");

            int roll = input.nextInt();

            System.out.println("Your roll is: "+roll);



            System.out.println("Enter math marks: ");

            double math= input.nextDouble();

            System.out.println("Enter EEE marks: ");

            double EEE= input.nextDouble();

            System.out.println("Enter English marks: ");

            double English= input.nextDouble();



            double average = (math+ EEE + English)/3;



            System.out.println("The average of three subjects is: "+average);

        }

    }

   //id:192-15-2820

}




package classwork;

import java.util.Scanner;

public class MarkEntrySytem {

    public static void main(String[] args) {

        int r,m1,m2,m3;

        Scanner input=new Scanner(System.in);



        System.out.print("Enter Roll Number:");

        r=input.nextInt();



        System.out.print("Enter Marks of Subject1:");

        m1=input.nextInt();

        System.out.print("Enter Marks of Subject2:");

        m2=input.nextInt();

        System.out.print("Enter Marks of Subject3:");

        m3=input.nextInt();



        double a=(m1+m2+m3)/3;

        System.out.printf("Average Marks of Roll %d is: %.2f\n",r,a);

    }

}




zafrin all mustary

192-15-2834

package oop;



import java.util.Scanner;

import java.text.DecimalFormat;



public class student_marks {

    public static void main(String[] args) {

        Scanner input= new Scanner(System.in);

        DecimalFormat df2 = new DecimalFormat(".000");

        double  math,bangla,english;

        double avg;

        for (int i = 0; i < 8; i++) {

            System.out.print("enter student id:");

            int id= input.nextInt();

            System.out.println("student id is:"+id);

            System.out.print("enter marks for math:");

            math= input.nextInt();

            System.out.print("enter mark of bangla:");

            bangla= input.nextInt();

            System.out.print("enter mark of english:");

            english= input.nextInt();

            avg= (math+bangla+english)/3;

            System.out.println("student id number:"+id+"got average number:"+df2.format(avg));









        }

    }



}




//Tawhid Ahmed Komol

//Id: 192-15-2861

//Program to print the roll number and average marks of 8 students in three subjects (each out of 100). The marks are entered by user.



package oop;

import java.util.Scanner;

import java.text.DecimalFormat;

public class Result {

       public static void main(String[] args) {

        Scanner input=new Scanner(System.in);

        DecimalFormat df2 = new DecimalFormat(".00");

        double math, phy, eng;

        for (int i=0; i < 8; i++) {

            System.out.print("Enter student Id: ");

            int id=input.nextInt();

            System.out.println("Student Id is: "+id);

            System.out.print("Enter Marks for Math: ");

            math=input.nextInt();

            System.out.print("Enter Marks for Physics: ");

            phy=input.nextInt();

            System.out.print("Enter Marks for English: ");

            eng=input.nextInt();

            double avg=((math+phy+eng)/3);

            System.out.println("Student Id no "+id+" got Average: "+df2.format(avg)+" marks in 3 subject");

        }

    }

}


//Write a program to print the roll number and average marks of 8 students in three subjects (each out of 100). The marks are entered by user.

package practice_problem;

import java.util.Scanner;

public class StudentMarks {

    public static void main(String[] args) {

        int roll,marks,sum=0;

        Scanner input = new Scanner(System.in);

        for (int i = 1; i <= 8; i++) {

            System.out.printf("Enter Roll Number = ");

            roll=input.nextInt();

            for (int j = 1; j <= 3; j++) {

                System.out.printf("Enter Marks of Subject[%d] : ",j);

                marks = input.nextInt();

                sum = sum + marks;

            }

            System.out.println("");

            double average = (double)sum/3;

            System.out.println ("The Roll Number of Student "+": "+roll);

            System.out.println("Average Marks : "+average);

            System.out.println("");

        }

    }

}




package exercise01;



import java.util.Scanner;





public class NewClass3 {



    public static void main(String[] args) {



        Scanner input = new Scanner(System.in);



        int roll, s1,s2,s3;



        System.out.print("enter roll 1number: ");

        roll= input.nextInt();



        System.out.print("number of subject one: ");

        s1=input.nextInt();

        System.out.print("number of subject two: ");

        s2=input.nextInt();

        System.out.print("number of subject three: ");

        s3=input.nextInt();



        double result= (s1+s2+s3)/3;

        System.out.printf("Avarage marks: %.2f/n",result);

    }

}




package ooptask;



import java.util.Scanner;





public class OopWeek1Task3 {

    public static void main(String[] args) {

        int i,j,roll_number,marks,sum=0;

double average;

 Scanner s = new Scanner(System.in);

 for(i=1;i<=8;i++){

     System.out.println("Enter roll_number: ");

     roll_number = s.nextInt();

     for(j=1;j<=3;j++){

         System.out.printf("enter marks of subject:%d",j);

         marks = s.nextInt();

         sum = sum+marks;

     }

     System.out.println("");

     average =(double)sum/3;

     System.out.println("The roll_number of a student"+""+roll_number);

     System.out.println("Average Marks: "+average);

     System.out.println("");

 }

    }

}








package jhavagun;

import java.util.Scanner;

public class Result {

    public static void main(String[] args) {

       int i=1;

       while(i<9){

        Scanner input=new Scanner(System.in);

        System.out.println(" Student number "+i);

        System.out.print("Enter your Roll Number : ");

        String a=input.nextLine();

        double b;

        System.out.print("Enter Your Bangla Exam Number : ");

        b=input.nextDouble();

        double c;

        System.out.print("Enter Your English Exam Number : ");

        c=input.nextDouble();

        double d;

        System.out.print("Enter Your Math Exam Number : ");

        d=input.nextDouble();

        double e=(b+c+d)/3;

        System.out.println("Your id is : "+a);

        System.out.println("Your number avgerage : "+e);

        i++;

       }



    }

}












package oop;



import java.util.Scanner;



public class Student_Information {



    public static void main(String[] args) {



    int rollNumber,marks,result=0;

    double average;

    Scanner input = new Scanner(System.in);





        for (int i = 1; i < 9; i++) {

            System.out.println("Enter The Roll Number :");

            rollNumber = input.nextInt();



            for (int j = 1; j < 4; j++) {



                System.out.println("Enter The Marks Of Subjects :");



                marks = input.nextInt();



                result = result+marks;



            }

           average = result/3;



            System.out.println("The roll number :"+rollNumber);



            System.out.println("Average Marks (each out of 100):"+average);



        }



        }



     }