32 lines
808 B
Java
32 lines
808 B
Java
// concurrent/Machina.java
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// (c)2017 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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import onjava.Nap;
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public class Machina {
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public enum State {
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START, ONE, TWO, THREE, END;
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State step() {
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if(equals(END)) return END;
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return values()[ordinal() + 1];
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}
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}
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private State state = State.START;
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private final int id;
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public Machina(int id) { this.id = id; }
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public static Machina work(Machina m) {
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if(!m.state.equals(State.END)){
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new Nap(100);
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m.state = m.state.step();
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}
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System.out.println(m);
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return m;
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}
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@Override
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public String toString() {
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return "Machina" + id + ": " +
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(state.equals(State.END)? "complete" : state);
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}
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}
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