32 lines
938 B
Java
32 lines
938 B
Java
// enums/Input.java
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// (c)2016 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://mindviewinc.com/Books/OnJava/ for more book information.
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import java.util.*;
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public enum Input {
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NICKEL(5), DIME(10), QUARTER(25), DOLLAR(100),
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TOOTHPASTE(200), CHIPS(75), SODA(100), SOAP(50),
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ABORT_TRANSACTION {
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@Override
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public int amount() { // Disallow
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throw new RuntimeException("ABORT.amount()");
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}
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},
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STOP { // This must be the last instance.
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@Override
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public int amount() { // Disallow
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throw new RuntimeException("SHUT_DOWN.amount()");
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}
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};
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int value; // In cents
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Input(int value) { this.value = value; }
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Input() {}
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int amount() { return value; }; // In cents
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static Random rand = new Random(47);
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public static Input randomSelection() {
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// Don't include STOP:
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return values()[rand.nextInt(values().length - 1)];
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}
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}
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