Write a program to input and store roll numbers, names and marks in 3 subjects of n number of students in five single dimensional arrays and display the remark based on average marks as given below:
| Average Marks | Remark |
|---|---|
| 85 — 100 | Excellent |
| 75 — 84 | Distinction |
| 60 — 74 | First Class |
| 40 — 59 | Pass |
| Less than 40 | Poor |
import java.util.Scanner;
public class RAnsariAvgMarks
{
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
System.out.print("Enter number of students: ");
int n = in.nextInt();
int rollNo[] = new int[n];
String name[] = new String[n];
int s1[] = new int[n];
int s2[] = new int[n];
int s3[] = new int[n];
double avg[] = new double[n];
for (int i = 0; i < n; i++) {
System.out.println("Enter student " + (i+1) + " details:");
System.out.print("Roll No: ");
rollNo[i] = in.nextInt();
in.nextLine();
System.out.print("Name: ");
name[i] = in.nextLine();
System.out.print("Subject 1 Marks: ");
s1[i] = in.nextInt();
System.out.print("Subject 2 Marks: ");
s2[i] = in.nextInt();
System.out.print("Subject 3 Marks: ");
s3[i] = in.nextInt();
avg[i] = (s1[i] + s2[i] + s3[i]) / 3.0;
}
System.out.println("Roll No\tName\tRemark");
for (int i = 0; i < n; i++) {
String remark;
if (avg[i] < 40)
remark = "Poor";
else if (avg[i] < 60)
remark = "Pass";
else if (avg[i] < 75)
remark = "First Class";
else if (avg[i] < 85)
remark = "Distinction";
else
remark = "Excellent";
System.out.println(rollNo[i] + "\t"
+ name[i] + "\t"
+ remark);
}
}
}First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.
After understanding this example, try to rewrite the same program without looking at the code. Then change some values or logic and run it again. This helps improve confidence and keeps learners engaged on the page for longer.