THIS.java

package BASICS;


class Animal{
    private int age;
    private String type;
    String name;
    // public void setData(int age,String type,String name,Animal A){
    //     Animal obj1=A;
    //     obj1.age=age;
    //     obj1.name=name;
    //     obj1.type=type;
    // }
    // to refer to the current object we can use 'this' keyword,
    // now we don't need to take class object as params.
    public void setData(int age,String type,String name){
        this.age=age;
        this.type=type;
        this.name=name;
    }
    public void getData(){
        System.out.println(age);
        System.out.println(type);
        System.out.println(name);
    }

}
public class THIS {
    public static void main(String[] args) {
        Animal obj = new Animal(); //obj is reference object.
        new Animal(); //this is an Anonymous Object
        obj.setData(4,"Mammal","Cat");
        obj.getData();
    }
}