A user has requested a field that counts the number of child record associated with a custom object. These custom objects have a
1 answer:
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Answer:
a) public class Bear extends Animal{ ... }
public class Zoo { private Animal[] myAnimals;
... }
Explanation:
The question is an illustration of inheritance in Java programming language.
The syntax to follow is:
class subclass extends superclass {...}
From the question:
Bear subclass
Animal superclass
So, the following declaration will be used:
class Bear extends Animal{ ... }
Also from the question, the zoo object represents collection of many animals.
So, its declaration will follow:
class class-name{ ..... }
i.e.
class zoo{ .... }
The ... can then be replaced with declaration of each animal or an array to represent the declarations..
<em>Hence, (e) is correct</em>
Answer:
The following are the algorithm to this question:
Explanation:
Following are the steps of the algorithm:
step 1:
To calculate the area of the room, firstly we need to divide the given image into parts and calculate the area of the given image.
step 2:
After calculating each part area, we merge all the parts to calculate the areas.
Calculating area of the parts:
In part 1:
It forms the square shape, and the formula of the square is .
In this diagram we let A=B. that's why the area is
.
In part 2:
In this part also forms the square image. In this, the side is equal to (A-c). so, the area is equal to .
In part 3:
It forms the triangle shape, and the area of the triangle is. the value of "b" is E and the "h" is = (A-C). so, the area is
.
The total area is:
