Passing objects in Java [closed]

In Java Inheritance is a different concept compared to Passing objects to other object.Actually you cannot pass an object to other object, you can pass object to methods.

Check this To Pass Objects to functions

You can access Instance methods/Instance Variables using Object.

class SuperClass{
   public void method(){
   //....
   //...
   }
}

public class Example{
    public void example(SuperClass object)
    {
        //you cannot directly call super class method
        //if you want to call then use Object
        object.method()
    }
}

In Inheritance you can access Instance Variables/ Methods with out using object to that class.

class SuperClass{
   void method(){
       //....
      //...
   }
}

class Example extends SuperClass{

    public void exampleMethod()
    {
        //You can directly call superclass method here
        method()
    }
}

For more details on Inheritance check

IS-A Relationship

Inheritance can be defined as the process where one object acquires the properties of another. With the use of inheritance the information is made manageable in a hierarchical order.

This means you are able to access super class member and method in your subclass.

class A{
   int a;
  }

 class B extends A{

 }

int a get inherited in class B so you can use it in class B Read more

You can not pass one object to another object.

Software objects communicate and interact with each other in two ways:
1. By calling (or invoking) each other's methods
2. By directly accessing their variables.

Read more