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Animal
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Animal
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//A menu driven program to show inheritance and functions related to zoo
import java.util.*;
abstract class Animal
{
String type;
public Animal() {}
abstract String getName();
abstract int getAge();
abstract void talk();
}
class Tiger extends Animal
{
String name;
int age;
public Tiger(String name, int age)
{
this.name = name;
this.age = age;
this.type = "Carnivore";
}
void talk()
{
System.out.println("The name of the animal is " + name);
System.out.println("The age of the animal is " + age);
System.out.println("The type of the animal is " + type);
}
String getName()
{
return name;
}
int getAge()
{
return age;
}
}
class Elephant extends Animal
{
String name;
int age;
public Elephant(String name, int age)
{
this.name = name;
this.age = age;
this.type = "Herbivore";
}
void talk()
{
System.out.println("The name of the animal is " + name);
System.out.println("The age of the animal is " + age);
System.out.println("The type of the animal is " + type);
}
String getName()
{
return name;
}
int getAge()
{
return age;
}
}
class Bull extends Animal
{
String name;
int age;
public Bull(String name, int age)
{
this.name = name;
this.age = age;
this.type = "Herbivore";
}
void talk()
{
System.out.println("The name of the animal is " + name);
System.out.println("The age of the animal is " + age);
System.out.println("The type of the animal is " + type);
}
String getName()
{
return name;
}
int getAge()
{
return age;
}
}
class Zoo {
int count = 0;
Animal animals[] = new Animal[999];
public void addAnimal(Animal a)
{
animals[count]=a;
count++;
}
public void displayAnimal()
{
Animal a;
for(int i=0; i<count; i++)
{
a=animals[i];
System.out.println("Name is "+a.getName());
System.out.println("Type is "+a.type);
}
}
public void displayAnimal(String type)
{
Animal a;
for(int i=0; i<count; i++)
{
a=animals[i];
if(!(a.type).equalsIgnoreCase(type))
continue;
System.out.println("Name is "+a.getName());
System.out.println("Type is "+a.type);
}
}
public void feedingTime()
{
for(int i=0;i<count;++i)
{
animals[i].talk();
}
}
}
public class Manage{
public static void main(String args[])
{
Zoo zoo1 = new Zoo();
do{
System.out.println("Choose one of the options.");
System.out.println("1. Add a new animal to the zoo: a)Tiger b)Elephant c)Bull");
System.out.println("2. Display all animals currently in the zoo.");
System.out.println("3. Display the name and age of the animal in a selected type.");
System.out.println("4. Trigger feeding Time.");
Scanner myscan = new Scanner(System.in);
int number = myscan.nextInt();
switch(number) {
case 1:{
myscan.nextLine();
System.out.println("enter type: ");
String myAnimal = myscan.nextLine();
System.out.println("enter name: ");
String animalName = myscan.nextLine();
System.out.println("enter age: ");
int animalAge = myscan.nextInt();
if(myAnimal.equals("Tiger"))
{
Animal t1=new Tiger(animalName,animalAge);
zoo1.addAnimal(t1);
}
else if(myAnimal.equals("Elephant"))
{
Animal e1=new Elephant(animalName,animalAge);
zoo1.addAnimal(e1);
}
else if(myAnimal.equals("Bull"))
{
Animal b1=new Bull(animalName,animalAge);
zoo1.addAnimal(b1);
}}
break;
case 2:
zoo1.displayAnimal();
break;
case 3:{
Scanner scan1 = new Scanner(System.in);
String AnimalType = scan1.nextLine();
zoo1.displayAnimal(AnimalType);
}
break;
case 4:
zoo1.feedingTime();
break;
}
}
while(true);//loop closed
}
}