Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.ArrayList;
import java.util.List;

public class Main {
    public static void main(String[] args) {
        Person p = new Person("A");
        Animal a = new Animal("B");
        Thing t = new Thing("C");
        String text = "hello";
        Integer number = 1000;

        List<Object> list = new ArrayList<Object>();
        list.add(p);
        list.add(a);
        list.add(t);
        list.add(text);
        list.add(number);

        for (int i = 0; i < list.size(); i++) {
            Object o = list.get(i);
            if (o instanceof Person) {
                System.out.println("My name is " + ((Person) o).getName());
            } else if (o instanceof Animal) {
                System.out.println("I live in " + ((Animal) o).getHabitat());
            } else if (o instanceof Thing) {
                System.out.println("My color is " + ((Thing) o).getColor());
            } else if (o instanceof String) {
                System.out.println("My text is " + o.toString());
            } else if (o instanceof Integer) {
                System.out.println("My value is " + ((Integer) o));
            }
        }
    }
}

class Person {
    private String name;

    public Person(String name) {
        this.name = name;
    }

    public String getName() {
        return name;
    }
}

class Animal {
    private String habitat;

    public Animal(String habitat) {
        this.habitat = habitat;
    }

    public String getHabitat() {
        return habitat;
    }
}

class Thing {
    private String color;

    public Thing(String color) {
        this.color = color;
    }

    public String getColor() {
        return color;
    }
}