8. Write a Java program to find sum of all odd numbers between 1 to n.
Static :-
class loop8
{
public static void main(String args[])
{
int i=1,n=20,sum=0;
while(i<=n)
{
if(i%2!=0)
sum = sum + i;
i++;
}
System.out.println(sum);
}
}
Output :-
Dynamic :-
import java.util.*;
class loop8
{
public static void main(String args[])
{
Scanner in = new Scanner(System.in);
int i,j,sum=0;
System.out.println("Enter the First number:- ");
i=in.nextInt();
System.out.println("Enter the Last number:- ");
j=in.nextInt();
while(i<=j)
{
if(i%2!=0)
sum =sum +i;
i++;
}
System.out.println(sum);
}
}
Output :-
