public class MyThread extends Thread {

  public void run() {
    int localInt = 45;
    SharedObj localObj = SharedObj.sharedInstance;
    localObj.member++;
  }
  
  public static void main(String []args) {
    new MyThread().start();
    new MyThread().start();
  }
}

class SharedObj {

  public static SharedObj sharedInstance = new SharedObj();
  public Integer object = new Integer(22);
  public long member = 12345;
}