28 lines
695 B
Java
28 lines
695 B
Java
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package records;
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public class Rechteck extends Exception{
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record Rectangle(double laenge, double breite) {
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public Rectangle {
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if (laenge <= 0 || breite <= 0) {
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throw new java.lang.IllegalArgumentException(
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String.format("Keine 0 oder negative Werte erlaubt."));
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}
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}
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}
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public static void main(String[] args) {
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Rectangle r = new Rectangle(4.0, 3.0);
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Rectangle r2 = new Rectangle(1.0, 2.0);
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System.out.println("Fläche: " + r.laenge() * r.breite());
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System.out.println("Fläche2: " + r2.laenge() * r2.breite());
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}
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}
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