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est (int x = 0, int y = 0) { this->x = x; this->y = y; }   Test setX(int a) { x = a; return *this; }   Test setY(int b) { y = b; return *this; }   void print() { cout << "x = " << x << " y = " << y << endl; } };    int main() {   Test obj1;   obj1.setX(10).setY(20);   obj1.print();   return 0;

est (int x = 0, int y = 0) { this->x = x; this->y = y; }   Test setX(int a) { x = a; return *this; }   Test setY(int b) { y = b; return *this; }   void print() { cout << "x = " << x << " y = " << y << endl; } };    int main() {   Test obj1;   obj1.setX(10).setY(20);   obj1.print();   return 0;

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Hi, please help me with following c++ code, and I did not understand why the output is x=10 y=0. Pleas explain to me, thank you. 

 

#include<iostream>
using namespace std;
  
class Test
{
private:
  int x;
  int y;
public:
  Test (int x = 0, int y = 0) { this->x = x; this->y = y; }
  Test setX(int a) { x = a; return *this; }
  Test setY(int b) { y = b; return *this; }
  void print() { cout << "x = " << x << " y = " << y << endl; }
};
  
int main()
{
  Test obj1;
  obj1.setX(10).setY(20);
  obj1.print();
  return 0;
}

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