Syed Ahmed Zaki

Robot.java package com.zakilive.ooplearningbyme; public class Robot implements Walkable { public void walk(){ System.out.println(“Robot Walking”); } }  …

Java variables, Array, 2d array Method Different method invoking and return type Class – Class is actually…

Singleton Facade pattern[fassad] Adapter/Bridge pattern Strategy pattern Observer pattern

package com.zakilive.ooplearningbyme; class Employee{ int salary; int eid; static String ceo; //if i don’t made the static…

Address of variable saved in stack And the main variable or value saved in heap Stack works…