Question

Write an algorithm to calculate the average of marks obtained in 4 subjects out of 80, taking the input from the user.

Answer 1

Java programme :-

{\\class

/AverageMarks

{utl.source

public static void main(String args[])}}\

{

int n;

int p =args.length;

double avg=0;

for( i=0;i<n;i++)

{

avg=avg+Integer.parseInt(args[i]);

}

System.out.println("4")

System.out.print("Average marks of (" 40,50,55,60);

The AverageCalculation c= (a);

for(i=0;i<n-1;i++)

{

System.out.print(args[i]+",");

}

System.out.print(a[i]+",");

}

System.out.println(a[i]+") ="+c.avg/n);\\

}

}

Output :-

The number of subjects = 4

Marks

40

50

55

60

Average of (40+50+55+60) =205/4 = 51.25 .

Answer 2

import.java.util.*;

class s1upv

{public static void main ()

{double s,a,p,u ;

scanner sc = new Scanner ( system.in); system .out.println ("enter marks of 4 subjects");

s = sc.nextDouble(); a = sc.nextDouble(); u = sc.nextDouble(); p= sc.nextDouble();

if ( s < 80 && a< 80 && p< 80 && u< 80 )

{double t = s+a+p+u ;

double k = t / 4 ;

}

else

{ system .out.println ( "full mks is 80 so mks obtained must be <80 ") ; }

system.out.println (" average : " + k ) ;

}}