Write a Java program to create a Package “SY” which has a class SYMarks (members – ComputerTotal, MathsTotal, and ElectronicsTotal). Create another package TY which has a class TYMarks (members – Theory, Practicals). Create n objects of Student class (having rollNumber, name, SYMarks and TYMarks). Add the marks of SY and TY computer subjects and calculate the Grade (‘A’ for >= 70, ‘B’ for >= 60 ‘C’ for >= 50 , Pass Class for > =40 else ‘FAIL’) and display the result of the student in proper format.

 a) Write a Java program to create a Package “SY” which has a class SYMarks

(members – ComputerTotal, MathsTotal, and ElectronicsTotal). Create another

package TY which has a class TYMarks (members – Theory, Practicals). Create n

objects of Student class (having rollNumber, name, SYMarks and TYMarks). Add

the marks of SY and TY computer subjects and calculate the Grade (‘A’ for >= 70,

‘B’ for >= 60 ‘C’ for >= 50 , Pass Class for > =40 else ‘FAIL’) and display the result

of the student in proper format.

import TY.*;
import java.io.*;
class StudentInfo{
int rollno;
String name,grade;
public float gt,tyt,syt;
public float per;
public void get() throws IOException{
System.out.println("Enter roll number and name of the student: ");
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
rollno=Integer.parseInt(br.readLine());
name=br.readLine();
}
}
public class StudentMarks {
public static void main(String[] args) throws IOException{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter the number of students:");
int n=Integer.parseInt(br.readLine());
SYMarks sy[]=new SYMarks[n];
TYMarks ty[]=new TYMarks[n];
StudentInfo si[]=new StudentInfo[n];
for(int i=0;i<n;i++)
{
si[i]=new StudentInfo();
sy[i]=new SYMarks();
ty[i]=new TYMarks();
si[i].get();
sy[i].get();
ty[i].get();
si[i].syt=sy[i].ct+sy[i].et+sy[i].mt;
si[i].tyt=ty[i].pm+ty[i].tm;
si[i].gt=si[i].syt+si[i].tyt;
si[i].per=(si[i].gt/1200)*100;
if(si[i].per>=70) si[i].grade="A";
else if(si[i].per>=60) si[i].grade="B";
else if(si[i].per>=50) si[i].grade="C";
else if(si[i].per>=40) si[i].grade="Pass";
else si[i].grade="Fail";

}
System.out.println("Roll No\tName\tSyTotal\tTyTotal\tGrandTotal\tPercentage\tGrade");
for(int i=0;i<n;i++)
{
System.out.println(si[i].rollno+"\t"+si[i].name+"\t"+si[i].syt+"\t"+si[i].tyt+"\t"+si[i].gt+"\t\
t"+si[i].per+"\t\t"+si[i].grade);
}
}
}

SYMarks.java

package TY;
import java.io.BufferedReader;
import java.io.*;
public class SYMarks {
public int ct,mt,et;
public void get() throws IOException{
System.out.println("Enter marks of students for computer, maths and electronics subject out of 200
");
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
ct=Integer.parseInt(br.readLine());
mt=Integer.parseInt(br.readLine());
et=Integer.parseInt(br.readLine());
}

}

TYMarks.java

package TY;
import java.io.*;
public class TYMarks {
public int tm,pm;
public void get() throws IOException{
System.out.println("Enter the marks of the theory out of 400 and practicals out of 200: ");
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
tm=Integer.parseInt(br.readLine());
pm=Integer.parseInt(br.readLine());
}
}

Output :

Enter the number of students:
1

Enter roll number and name of the student:
1
Rohit
Enter marks of students for computer, maths and electronics subject out of 200
200
200
200
Enter the marks of the theory out of 400 and practicals out of 200:
399
199
Roll No Name SyTotal TyTotal GrandTotal Percentage Grade
1 Rohit 600.0 598.0 1198.0 99.833336 A