update,

it114105/itp4510/Lab01/Lab1.1/Worker.java

@@ -0,0 +1,16 @@
+public class Worker {
+    private String name;
+    protected double salary;
+
+    public Worker(String name) {
+        this.name = name;
+    }
+
+    public double earnings() {
+        return salary;
+    }
+
+    public String toString() {
+        return name;
+    }
+}