Thursday, 17 December 2015

Java Tutorial : Java this keyword (call two arg constructor)


Click here to watch in Youtube : 
https://www.youtube.com/watch?v=LpwiBvtW2M0&list=UUhwKlOVR041tngjerWxVccw

Student.java
public class Student
{

    public String name;
    public int age;
    public String city;

    public Student(String name, int age)
    {
        this.name = name;
        this.age = age;
    }

    public Student(String name, int age, String city)
    {
        /*
         * The this() constructor call should be used to reuse the constructor
         * in the constructor. It maintains the chain between the constructors
         * i.e. it is used for constructor chaining.
         * 
         * Now no need to initialize name and age.
         */
        this(name, age);
        this.city = city;
    }

}
StudentTest.java
public class StudentTest
{

    public static void main(String[] args)
    {

        Student studentObject = new Student("Peter",25,"Bangalore");
        System.out.println("Name : "+studentObject.name);
        System.out.println("Age  : "+studentObject.age);
        System.out.println("City : "+studentObject.city);

    }

}
Output
Name : Peter
Age  : 25
City : Bangalore
Click the below link to download the code:
https://sites.google.com/site/javaee4321/java/ThisKeyWordDemoCallTwoArgsConsApp.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/ThisKeyWordDemoCallTwoArgsConsApp

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/f95cef6f929a55d126484d6f51e7b129a718c586/BasicJava/ThisKeyWordDemoCallTwoArgsConsApp/?at=master

See also:

  • All JavaEE Viedos Playlist
  • All JavaEE Viedos
  • All JAVA EE Links
  • Servlets Tutorial
  • All Design Patterns Links
  • JDBC Tutorial
  • Java Collection Framework Tutorial
  • JAVA Tutorial
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