Method adjustE

src/debugging/physicsapps/IsingApp.java:214–218

Adjust the energy to account for changes in the external field.

()

    * Adjust the energy to account for changes in the external field.
    */
   synchronized void adjustE() {
      E -= (newH-H)*M;
      H = newH;
      fieldChanged = false;
   }

   private boolean flip() {
      int x = (int) (Math.random()*size);