Overlapping Scope

• A local variable can shadow a field with the same name
• Local scope wins over class scope
  

  public class Coin
  {
     . . .
     public double getExchangeValue(double exchangeRate)
     {
        double value; // Local variable
        . . .
        return value;
     }
     private String name;
     private double value; // Field with the same name
  }

• Access shadowed fields by qualifying them with the this reference

  value = this.value * exchangeRate;