I just started a few weeks ago to learn java. So far I have a problem that I can not get over. I have a mother Class, with 4 extended classes. I have a vector, and want to put in it objects made random using Factory with Switch (I want to use this mode because I do not understand how switch works - I did it with if/else, but not with switch). Can anybody help me? :)
package Tudor;
import java.util.Random;
import java.util.Arrays;
public class Main {
public static void main(String[] args) {
Random rd = new Random();
int tipAnimal = rd.nextInt(4);
Animal list[] = new Animal[5];
for (int i = 0; i < list.length;; i++) {
lista[i] = Factory.buildAnimal(tipAnimal);
}
package Tudor;
public class Animal {
Object animal;
public Animal(Object animal) {
this.animal = animal;
}
package Tudor;
public class Dog extends Animal {
}
package Tudor;
public class Cat extends Animal {
}
package Tudor;
public class Doberman extends Dog{
}
package Tudor;
public class Shorthair extends Cat{
}
package Tudor;
public class Factory {
public static Animal buildAnimal ( Object animal) {
switch (animal) {
}
The thing is that I can not understand how the cases should be in this switch.
Thx. I got it now. I should had used the int insted of Object.
public class Factory {
public static Animal buildAnimal (int tipAnimal) {
switch (tipAnimal) {
case 0 :
return new Animal();
case 1 :
return new Dog();
case 2:
return new Cat();
case 3:
return new Doberman();
case 4:
return new Shorthair();
default: return null;
}
}
}
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