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Soient les classes Java suivantes : public class Point2D { private int x,y...

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Soient les classes Java suivantes :

public class Point2D {

private int x,y;

public Point2D(int x, int y) {

this.x = x;

this.y = y;

}

public Point2D() {

this.x = 0;

this.y = 0;

}

}

public class Point3D extends Point2D {

private int z;

}

On souhaite écrire un constructeur pour la classe Point3D ayant la signature suivante :

public Point3D(int x, int y, int z);

Parmi les différentes propositions présentées ci-dessous, lesquelles se compilent correctement ?

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