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Interface.java
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Interface.java
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interface Presentation {
public String getLabel();
public void show();
}
class Datum implements Presentation {
protected String description;
public Datum(String datumDescription) {
description = datumDescription;
}
public String getLabel() { // Must be implemented.
return ("Description: " + description);
}
public void show() { // Must be implemented.
System.out.println(getLabel());
}
}
class Content extends Datum {
protected String core;
public Content(String contentCore, String contentDescription) {
super(contentDescription);
core = contentCore;
}
public void show() {
System.out.println(getLabel() + "\n"
+ "Core: " + core
);
}
}
class Interface {
public static void main(String[] args) {
Datum color = new Datum("Favourite color");
color.show();
System.out.println();
Content lectio = new Content(
"In omnibus requiem quaesivi, et nusquam inveni nisi in angulo cum libro.",
"De beneficiis lectionis"
);
lectio.show();
System.out.println();
}
}