update,

_resources/it114105/itp4510/Lab01/Lab1.1/CommissionWorker.java

@@ -0,0 +1,30 @@
+public class CommissionWorker extends Worker{
+    private double commission;
+    private int quantity;
+
+    public CommissionWorker(String name, double c, int q) {
+        super(name);
+        setCommission(c);
+        setQuantity(q);
+    }
+
+    public void setCommission(double c) {
+        commission = c;
+    }
+
+    public void setQuantity(int q) {
+        quantity = q;
+    }
+
+    public double earnings() {
+        salary = commission * quantity;
+        return salary;
+    }
+
+    public String toString() {
+        return super.toString() + " earned commission of $" +
+
+                earnings();
+
+    }
+}