Java Program to calculate sum of N given numbers
Get input n and n inputs and calculate the sum of n inputs.
Sample Input 1:
4 6 5 3 2
Sample Output 1:
The sum is: 16
Program or Solution
import java.util.*;
class SumOfNInputs
{
public static void main(String args[])
{
int i,n,num,sum=0;
System.out.println("Enter Number Of Numbers You Want To Sum");
Scanner sc=new Scanner(System.in);
n=sc.nextInt();
System.out.println("Enter The Numbers To Sum");
for(i=1;i<=n;i++)
{
num=sc.nextInt();
sum=sum+num;
}
System.out.println("The Sum Is: "+sum);
}
}
Program Explanation
1. Get input n (How many values to be added)
2. Instruction(s) inside the for block{} are executed repeatedly till the second expression (j<=n) is true.
for(i=1;i<=n;i++)
3. Here i is initialized to 1 and incremented by 1 for each iteration, instructions inside the for block are
executed in every iteration. iteration stops when i becomes greater than n.
num=sc.nextInt();
sum=sum+num;
so value of num given by user will be added to sum at each iteration.
sum = sum + num
sum = 0 + 5 (if 5 given)
sum = 5 + 2 (if 2 given)
sum = 7 + 9 (if 9 given)
...........
...........
after adding all n numbers given by user to sum, sum will be printed using system.out.println.
Comments
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