How do you encapsulate properties in inheritance

How do you encapsulate properties in inheritance

Answer: In simple terms encapsulation means hide information or data hiding. Information that doesn’t need to be known to others in order to perform some task. Please have example below:

package com.javahonk.encapsulation;

public class Women {

	private int age = 20;

	public void willGoOutWithMen(int age, String 
			firstName, String lastName) {

		if (age >= 25) {
			System.out.println("Dear " 
		+ firstName + " " + lastName
			+ " I don't like Men age above 25 \n");
		} else {
			System.out.println("Dear " 
		+ firstName + " " + lastName
			+ " I will come with you. \n");
		}
	}

	public int getAge() {
		return age;
	}

}

 

package com.javahonk.encapsulation;

public class Men extends Women{	

	public static void main(String args[]){

		Men men = new Men();
		Women women = new Women();

		// Ask for party if age is 26
		women.willGoOutWithMen(26,"Java","Honk");

		// Ask for party if age is 24
		women.willGoOutWithMen(22,"Java","Monk");

		// Men doesn't have access to Women age but he can ask her
		// We are hiding women age using private modifier
		men.askHerAge();

	}

	private void askHerAge(){		
		System.out.println("Women age: "+getAge());
	}
}

 

Output:

How do you encapsulate properties in inheritance

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