53 lines
1.6 KiB
Java
53 lines
1.6 KiB
Java
// patterns/trash/TypeMapTrash.java
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// (c)2021 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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// Using a Map of Lists and reflection to sort
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// Trash into Lists. This is extensible, despite
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// the use of reflection.
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// {java patterns.trash.TypeMapTrash}
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package patterns.trash;
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import patterns.TypeMap;
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// Adapter class for ParseTrash.fillBin():
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class TypeMapAdapter implements Fillable {
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private TypeMap<Trash> map;
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TypeMapAdapter(TypeMap<Trash> map) {
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this.map = map;
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}
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@Override
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public void addTrash(Trash t) { map.add(t); }
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}
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public class TypeMapTrash {
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@SuppressWarnings("unchecked")
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public static void main(String[] args) {
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TypeMap<Trash> bin = new TypeMap<>();
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ParseTrash.fillBin(
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"trash", new TypeMapAdapter(bin));
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ClassToListOfTrashMap.show(bin.map);
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}
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}
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/* Output:
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Loading patterns.trash.Cardboard
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Loading patterns.trash.Paper
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Loading patterns.trash.Aluminum
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Loading patterns.trash.Glass
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Paper weight: 8.00 * price: 0.10 = 0.80
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Paper weight: 6.60 * price: 0.10 = 0.66
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Paper weight: 9.10 * price: 0.10 = 0.91
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Total Paper value = 2.37
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Glass weight: 5.40 * price: 0.23 = 1.24
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Glass weight: 4.30 * price: 0.23 = 0.99
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Glass weight: 3.60 * price: 0.23 = 0.83
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Total Glass value = 3.06
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Aluminum weight: 1.80 * price: 1.67 = 3.01
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Aluminum weight: 3.40 * price: 1.67 = 5.68
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Aluminum weight: 2.70 * price: 1.67 = 4.51
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Total Aluminum value = 13.19
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Cardboard weight: 4.40 * price: 0.11 = 0.48
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Cardboard weight: 2.20 * price: 0.11 = 0.24
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Cardboard weight: 1.20 * price: 0.11 = 0.13
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Total Cardboard value = 0.86
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*/
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