Q6(EP).java

1. Write a program to show the difference between public, private access specifier 
the programme should also show that primitive data types are passed by value and objects are passed by reference.

// Java program to showcase the example
// of public access modifier
  
// import required packages
import java.io.*;
import java.util.*;
  
// declaring a public class
public class A {
  
    // declaring method m1
    public void m1() { System.out.println("GFG"); }
}
  
class B {
    
    // main method
    public static void main(String[] args)
    {
        // creating an object of type class A
        A a = new A();
        
        // accessing the method m1()
        a.m1();
    }
}

// Java program to showcase the example
// of private access modifier
  
// import required packages
import java.io.*;
import java.util.*;
  
// helper class
class A {
    
    // helper method
    private void m1() { System.out.println("GFG"); }
}
  
// driver class
class B {
    
    // main method
    public static void main(String[] args)
    {
        // creating an object of type class A
        A a = new A();
        
        // accessing the method m1()
        a.m1();
    }
}