/**
   This example demonstrates local variables.
*/
public class Counter
{
   private int value; // value is instance variable

   /**
      Advances the value of this counter by 1.
   */
   public void click() 
   {
      int updatedValue = value + 1;
         // updatedValue is a local variable
      value = updatedValue;
         // updatedValue is forgotten here
   }

   /**
      Resets the value of this counter to a given value.
   */
   public void resetTo(int newValue) 
      // newValue is a parameter variable
      // newValue is initialized with the argument of a method call
   {
      value = newValue;
         // newValue is forgotten here     
   }

   /**
      Gets the current value of this counter.
      @return the current value
   */
   public int getValue()
   {
      return value;
   }
}