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 understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.