added lab7 ex1

src/lab7_state/ex1/states/ChoiceState.java

@@ -0,0 +1,32 @@
+package lab7_state.ex1.states;
+
+import lab7_state.ex1.Machine;
+import lab7_state.ex1.MachineState;
+
+public class ChoiceState extends MachineState {
+    public ChoiceState(Machine machine) {
+        super(machine);
+    }
+
+    @Override
+    protected void returnCoin() {
+        machine.returnMoney(0.25);
+        machine.setCurrentState(machine.getIdleState());
+    }
+
+    @Override
+    protected void pushButton() {
+        if (!machine.hasCups()) {
+            System.out.println("The machine is out of cups");
+        } else if (!machine.hasCoffee()) {
+            System.out.println("The machine is out of coffee beans");
+        } else if (machine.isJammed()) {
+            System.out.println("The machine is jammed");
+        } else {
+            machine.makeCoffee();
+            machine.setCurrentState(machine.getCoffeeReadyState());
+            return;
+        }
+        machine.setCurrentState(machine.getServiceNeededState());
+    }
+}