Answer:
Check the explanation
Explanation:
//Ball.java
public abstract class Ball {
double value;
String color;
public Ball() {
}
public Ball(double value, String color) {
this.value = value;
this.color = color;
}
public abstract void howToPlay();
}
////////////////////////////////////////////
//SoccerBall.java
public class SoccerBall extends Ball {
public void howToPlay() {
System.out.println("Description to how to play soccer ball");
}
}
Answer:
physical damage could include broken glass or ink splotches on the display, distorted images, or discoloration
Answer:
Correct answer is option B (The reason for using supertypes is to minimize the number of nulls and to minimize the likelihood of redundant relationships)
Explanation:
Entity supertype
A entity supertype is a generic entity type which is related with one or more subtypes.
Use of entity supertype:
The reason for using entity supertype is to reduce redundant relationships and it is also used to minimize the number of nulls.
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