Determine minimum expenses

JavaApplication1.java

package javaapplication1;

/**
 *
 * @author wanzu
 */
public class JavaApplication1 extends Thread {
    
    static int minimum_expenses = 0;

    @Override
    public void run(){
        minimum_expenses++;
    }
    public static void main(String[] args) {
        Thread t[] = new Thread[10];
        for (int i=0; i<t.length; i++){
            t[i] = new JavaApplication1();
        }
        for (int i=0; i<t.length; i++){
            t[i].start();
        }
        System.out.println(minimum_expenses);
        
    }
    
}