BCSL043 June 2016 Set 3 Solution

Question 1- Write a Java program to find the average marks of  students in class for BCSL-043 40 assignments. Make necessary provision for exceptions handling in your program.

Solution -

import java.util.Scanner;
public class average
{
public static void main(String[] args) {
int [] marks = new int[20];
int average;
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter 20 students marks");
try
{
int i,sum=0;
for (i=0; i<20;i++)
{
marks[i] = sc.nextInt();
if(marks[i] < 0)
throw new Exception("negative marks");
sum +=marks[i];
}
System.out.println("Average marks of 20 students is: "+sum/20);
}
catch(Exception e)
{
System.out.println("Marks can not be negative");
}
}
}

FileName: average.java

To execute the file first go to that directory where this file is saved. than complie the file usign this command :  javac average.java

To run the file type this command: java average

Output:

Enter 20 students marks
12 23 53 64 23 54 65 45 65 86 46 86 23 64 34 64 65 86 45 23
Average marks of 20 students is: 51

Enter 20 students marks
23 45 -10
Marks can not be negative

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