SUM AND AVERAGE OF N ELEMENTS IN DYNAMIC ARRAY IN CORE JAVA

Sum and average of n numbers using dynamically array                           EDITED BY SAYANI

Code:

import java.util.Scanner;

class arr

{

int a[],length;

void iplength(int x)

{

length=x;

}

void iparray()

{

a=new int [length];

Scanner j=new Scanner(System.in);

for(int i=0;i<length;i++)

{

a[i]=j.nextInt();

}

}

void op()

{

 int sum=0;

for(int i=0;i<length;i++)

{

sum=sum+a[i];

}

System.out.println("Sum="+sum);

double avg=(double)sum/(double)length;

System.out.println("Average="+ avg);

}

}

class arr1

                {

                                public static void main(String args[])

                                {

                                                arrob=new arr();

                                                ob.iplength(5);

                                                ob.iparray();

                                                ob.op();

                                }

                }

Output:E:\>javac arr1.java

E:\>java arr1

2

4

5

7

9

Sum=27

Average=5.4

E:\>