/**
 * SumThread
 *
 * split data mong multiple threads to sum up
 * combine results from all threads
 */

public class SumThread extends Thread {

    private static double[] shared;
    
    private int id;
    private int startIndex, endIndex;
    private double sum;
    
    public SumThread(int id, int i, int j) {
        this.id = id;
        startIndex = i;
        endIndex = j;
    }
    
    public void run() {
        
        sum = 0;
        
        for (int i = startIndex; i <= endIndex; ++i) {
            sum += shared[i];
        }
        
        System.out.printf("id: %d, i=%d, j=%d, sum=%f\n", id, startIndex, endIndex, sum);
    }
    
    public static void main(String[] args) {
        // TODO Auto-generated method stub

    }

}