Question

write a java program to input any 50 numbers including positive and negative. perform the following tasks:

a.Count positive numbers

b.count negative numbers

c. sum of positive numbers

d.sum of negative numbers

Answer 1

import java.util.*;
class num
{
public static void main()
{
Scanner in=new Scanner(System.in);
int n,cp=0,cn=0,sp=0,sn=0;
for(int i=1;i<=50;i++)
{
System.out.println("Enter a number");
n=in.nextInt();
if(n>=0)
{
cp++;
sp+=n;
}
else
{
cn++;
sn+=n;
}
}
System.out.println("Number of positive numbers:"+cp);
System.out.println("Sum of positive numbers:"+sp);
System.out.println("Number of negative numbers:"+cn);
System.out.println("Sum of negative numbers:"+sn);
}
}

Answer 2

Answer:

import java.util.*;

import java.io.*;

public class Program {

 

public static void main(String []args) throws IOException{

   

   int n,cp=0,cn=0,sp=0,sn=0;

   InputStreamReader read = new InputStreamReader(System.in);

   BufferedReader in = new BufferedReader(read);

   

   for(int i=1;i<=50;i++)

   {

   System.out.println("Enter a number");

   n=Integer.parseInt(in.readLine());

   if(n>=0)

   {

   cp++;

   sp+=n;

   }

   else

   {

   cn++;

   sn+=n;

   }

   }

   System.out.println("Number of positive numbers:"+cp);

   System.out.println("Sum of positive numbers:"+sp);

   System.out.println("Number of negative numbers:"+cn);

   System.out.println("Sum of negative numbers:"+sn);

   

     

}}

Explanation: