Number Of Negative/Positive Elements Of An Array
Write a program to display the number of positive and negative elements in a n x n matrix.
import java.io.*;
class SumOfPositiveNegative
{
public static void main(String ar[])throws Exception
{
BufferedReader ob=new BufferedReader(
new InputStreamReader(System.in));
int i,j,sop=0, son=0;
int a[][]=new int[3][3];
System.out.println("Enter "+(3*3)+" elements ");
for(i=0;i< 3;i++)
{
for(j=0;j< 3;j++)
{
a[i][j]=Integer.parseInt(ob.readLine());
}
}
for(i=0;i< 3;i++)
{
for(j=0;j< 3;j++)
{
if(a[i][j] > 0)
sop+=a[i][j];
if(a[i][j] < 0)
son+=a[i][j];
}
}
System.out.println("\nSum of positive elements = "+ sop);
System.out.println("\nSum of positive elements = "+ son);
}
}
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