Random array Additions

Randomly generates 10 numbers, fills an array, then displays the array contents with a message box, computes the array element's and displays the result in a message box.

Import javax.swing.*;

public class Sum {
public static void Main (String args[])
{
String output= "10 666666 or less random number: \ n";
int sum=0;
int a[]=new int [10];
for (int i=0;i<=9;i++)
{
a[i]= (int) (Math.random () *666666);
Output + = A[i] + ",";
Sum + = A[i];
}
Output + = "\ n 10 number of and is:" +sum;

Joptionpane.showmessagedialog (null,output, "result", joptionpane.plain_message);
}
}

Random array Additions