Question

To get promotion in a Science stream, a student must pass in English and should pass in any of the two subjects (i.e., Physics, Chemistry or Maths). The passing mark in each subject is 35. Write a program in a Single Dimensional Array to accept the roll numbers and marks secured in the subjects for all the students. The program should check and display the roll numbers along with a message whether "Promotion is Granted" or "Promotion is not Granted". Assume that there are 40 students in the class. 

Answer 1

import java.util.*;
class Q10{
public static void main(String args[]){
Scanner ob = new Scanner(System.in);

int i, roll[] = new int[40]; // FOR TESTING PURPOSE,CHANGE 40 TO 3
double e[] = new double[40]; // ENGLISH
double m[] = new double[40]; // MATHS
double p[] = new double[40]; // PHYSICS
double c[] = new double[40]; // CHEMISTRY
boolean flag;

// INPUT LOOP
for (i = 0; i < roll.length; i++)
{ 
System.out.print("Roll number: ");
roll[i] = ob.nextInt();
System.out.print("Enter marks in Eng, Maths, Phy and Chem \n");
e[i] = ob.nextDouble();
m[i] = ob.nextDouble();
p[i] = ob.nextDouble();
c[i] = ob.nextDouble();
}

// OUTPUT LOOP
System.out.println("ROLL NO. \t RESULT");
for (i = 0; i < roll.length; i++)
{ if ((m[i] >= 35 && p[i] >= 35) || (p[i] >= 35 && c[i] >= 35) || (m[i] >= 35 && c[i] >= 35))
flag = true;
else
flag = false; 

if (flag == true && e[i] >= 35)
System.out.printIn(roll[i] + "\t Promotion is granted");
   else
System.out.printIn(roll[i] + "\t Promotion is not granted");
}
}}