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Quontra Solutions is a reputed online training company started with an aim to provide Quality Training in the latest IT Technologies. Quontra Solutions has a pool of Expert Trainers on all the technologies to train the students. Quontra Solutions is offering Training services to Major IT employees and to individual students. Our trainer’s having vast experience in real time environment. If anyone has a dream for their career in software programming, then go for java because it is a popular route to establish and fulfill your dreams. We offer the best quality and affordable training, so you get trained from where you are, from our experienced instructors, remotely using Webex / Gotomeeting.
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Java Constructors by Quontra Solutions Call : 44 (0)20 3734 1498 / 99, Mail Us: info@quontrasolutions.co.uk
Constructor • Constructor in java is a special type of method that is used to initialize the object • Java Constructor is invoked at the time of object creation • They do not contain any return type • Constructor name is same as class name Call : 44 (0)20 3734 1498 / 99, Mail Us: info@quontrasolutions.co.uk
Types of Constructors • Default constructor (no-arg constructor) • Parameterized constructor Types of constructors Default constructor Parameterized constructor Call : 44 (0)20 3734 1498 / 99, Mail Us: info@quontrasolutions.co.uk
Default Constructors Example for default constructor: class Cons{ cons(){ System.out.println("constructor is created"); } public static void main(String args[]){ Cons c=new Cons(); } } Call : 44 (0)20 3734 1498 / 99, Mail Us: info@quontrasolutions.co.uk
Parameterized Constructors Example for parameterized constructor class Student4{ int id; String name; Student4(inti,String n){ id = i; name = n; } void display(){System.out.println(id+" "+name);} public static void main(String args[]){ Student4 s1 = new Student4(111,"Karan"); Student4 s2 = new Student4(222,"Aryan"); s1.display(); s2.display(); } } Call : 44 (0)20 3734 1498 / 99, Mail Us: info@quontrasolutions.co.uk
Difference between constructor and method Call : 44 (0)20 3734 1498 / 99, Mail Us: info@quontrasolutions.co.uk
Constructor Overloading • Constructors are methods that can be overloaded, just like any other method in a class. • Constructors having the same name with different parameter list is called constructor overloading. Call : 44 (0)20 3734 1498 / 99, Mail Us: info@quontrasolutions.co.uk
Topics Covered during Training • Classes, Objects, Keywords, Methods • Exception Handling • String Handling • Multithearding • AWT • Swing • Applet • Collections • Hibernate • Struts etc……………… Call : 44 (0)20 3734 1498 / 99, Mail Us: info@quontrasolutions.co.uk
Quontra Solutions Offers: Data Warehouse OBIEE, Cognos, Informatica Microsoft Courses C# .NET, ASP .NET, VB .NET & etc…. Programming Courses Core Java, Adv Java, J2EE, & etc…. Testing Tools Manual, QTP, Selenium, Load Runner Networking Courses Linux, Unix, Sun Solaris, CCNA Salesforce CRM Salesforce CRM, ADMIN, Developer Data Base SQL PL/SQL, SQL server DBA, ORACLE 12C DBA Other Courses… Business Analyst, Hadoop, Qlikview Mobile Apps Android, IOS, Cloud Computing Call : 44 (0)20 3734 1498 / 99, Mail Us: info@quontrasolutions.co.uk
Contact Us Call:44 (0)20 3734 1498 / 99 Mail:info@quontrasolutions.co.uk Visit:www.quontrasolutions.co.uk Call : 44 (0)20 3734 1498 / 99, Mail Us: info@quontrasolutions.co.uk
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