Question

1. Objects communicate by sending messages each other. How message-passing is implanted in object oriented context?

Answer 1

Message passing is a kind of convey data or information between objects. A message is a kind of request for the execution of a function. To convey the message, we need three things object, the method in that object and the information. For example

class student{

private int marks;

public void store_marks(int marks){

this.marks = marks;

}

public int get marks(){

return marks;

}

}

Student st = new student();

st.store_marks(4);

st, object calls the method store marks and sends the data 4 as a message. this is called message passing. Methods of a object is called using . operator