28 lines
759 B
Java
28 lines
759 B
Java
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package enumeration;
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public enum Planet {
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MERKUR(59e+6, 88), VENUS(108e+6, 225),
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ERDE(150e+6, 365), MARS(228e+6, 1.9*365),
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JUPITER(778e+6, 11.9*365), SATURN(1427e+6, 29.5*365),
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URANUS(2870e+6, 84*365), NEPTUN(4497e+6, 165*365);
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private final double entfernungsonne;
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private final double umlaufzeit;
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private Planet(double entfernungsonne, double umlaufzeit) {
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this.entfernungsonne = entfernungsonne;
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this.umlaufzeit = umlaufzeit;
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}
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public double bahngeschwindigkeit() {
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return 2 * entfernungsonne * Math.PI / umlaufzeit / 24;
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}
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@Override
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public String toString() {
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return name() + " ist der " + (ordinal() + 1) + " Planet im Sonnensystem.";
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}
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}
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