|Home |Login |Registration |Struts Step by Step Tutorial |Hibernate Step by Step Tutorial |Spring Step by Step Tutorial |JSP Step by Step Tutorial |JDBC Step by Step Tutorial |Web Services Step by Step Tutorial |EJB fundamentals | ORACLE Step by Step Tutorial | SCJP 5.0 and SCJP 6.0 Study Guide | SCWCD 5.0 Study Guide | SCJP Tips
Java mock test | SCJP mock test | SCJP DUMP | SCBCD mock test |Java online test exam | JSP online test | ORACLE online test | Hibernate online test | Servlet online test | Struts online test | EJB online test | C online test | C++ online test | Aptitude online test

Java interview questions | JSP interview questions | ORACLE interview questions | Hibernate interview questions | Servlet interview questions | Struts interview questions | JDBC interview questions | C/C++ interview questions | Spring interview questions | JMS interview questions | Informatica interview questions | EJB interview questions | OOPS and Design Pattern interview questions
1600 PMP mock questions 1400 CAPM mock questions 800 SCJP 6 mock questions 600 OCAJP 7 mock questions 590 OCPJP 7 mock questions 556 SCWCD 5 mock questions 500 OCEJWCD 6 mock questions pdfDownload (java,struts, hibernet etc) JobsJobs and Walkins

OOPs and Design Pattern interview questions

  • What is Observer pattern ? Explain with Code Example ? view answer
  • "is-a" relationship describes inheritance relationship between objects view answer
  • has-a relationship, which is also called object composition view answer
  • The four main concepts are involved in OOP view answer
  • Example Java Code For Association & Aggregation & Composition view answer
  • What are the common things need to consider while Creating and Destroying Objects view answer
  • what is the difference between encapsulation and data hiding? explain with Code example? view answer
  • Dependency In Java view answer
  • Is Singleton class is serialized ? view answer
  • What is Singleton ? and Double-checked locking ? view answer
  • What is Factory Method pattern? view answer
  • What is Adapter pattern ? view answer
  • What is Proxy and Decorator patterns ? With Java Example ? view answer
  • Brief Introduction to OOP Concepts view answer
  • What is Abstract Factory Pattern ? With Code Example ? view answer

!!! OOPs and Design Pattern interview questions !!!

Example Java Code For Association & Aggregation & Composition



Association :

This is just relation Both Car and Driver separate entity.
class Car {
Engine engine;
Stereo stereo;
}

class Driver {
}

class CarDriverLink {
Car car;
Driver driver;
}

Aggregation :
If Car object destroy the Engine can survive.
class Car {
List <Engine > engines;
}

class Engine {
}

Composition :
If Car object destroy the Engine also.Engine Can't survive.
class Car {
Engine engine;
Stereo stereo;
public Car(){
this.engine=new Engine();
}
}

class Engine {
}

Suggested Jobs

   More Jobs >>

The information you are posting should be related to java and ORACLE technology. Not political.