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InventorySample.java
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| public static void main(String args[]){ | |
| //bike product | |
| Map<String,List<String>> productDetails = new HashMap<>(); | |
| List<String> bikeComponentNames = new ArrayList<>(); | |
| bikeComponentNames.add("wheel"); | |
| bikeComponentNames.add("wheel"); | |
| bikeComponentNames.add("frame"); | |
| productDetails.put("bike", bikeComponentNames); | |
| //componets | |
| Map<String,Component> components = new HashMap<>(); | |
| components.put("wheel", new BikeComponent("mrf#123")); | |
| components.put("frame", new BikeComponent("cf#52")); | |
| //component prices | |
| Map<String,Double> prices = new HashMap<>(); | |
| prices.put("mrf#123", 100D); | |
| prices.put("cf#52", 1000D); | |
| Double discount = 0.10; | |
| Either<Exception, Double> ep = new InventorySample(productDetails, components, prices, discount).getProductPrice("bike"); | |
| ep.match((Exception e) -> {System.out.println(e.getMessage()); return null;}, | |
| (Double price) -> {System.out.println(price); return null;}); | |
| } | |
| /* | |
| Output with various changes to code above: | |
| --------------- | |
| (No change) | |
| -> 1080.0 | |
| --------------- | |
| //remove price of "cf#52" from inventory | |
| Map<String,Double> prices = new HashMap<>(); | |
| prices.put("mrf#123", 100D); | |
| // prices.put("cf#52", 1000D); | |
| -> Price not found for cf#52 | |
| ----------------- | |
| //remove frame componenet from inventory | |
| Map<String,Component> components = new HashMap<>(); | |
| components.put("wheel", new BikeComponent("mrf#123")); | |
| // components.put("frame", new BikeComponent("cf#52")); | |
| -> Component not found: frame | |
| ----------------- | |
| //no discount | |
| Either<Exception, Double> ep = new InventorySample(productDetails, components, prices, null).getProductPrice("bike"); | |
| -> 1200.00 | |
| ------------------ | |
| */ |
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