JAVA EE: Java Tutorial : Java this keyword (pass this to method)

Thursday 17 December 2015

Java Tutorial : Java this keyword (pass this to method)

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

Student.java

public class Student
{

    public String name;
    public int age;

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

    public void display()
    {
        /*
         * The this keyword can also be passed as an argument in the method. It
         * is mainly used in the event handling.
         * 
         * In event handling (or) in a situation where we have to provide
         * reference of a class to another one.
         */
        displayFields(this);
    }

    public void displayFields(Student studentObj)
    {
        System.out.println("Name : " + studentObj.name);
        System.out.println("Age  : " + studentObj.age);
    }

}

StudentTest.java

public class StudentTest
{

    public static void main(String[] args)
    {

        Student studentObject = new Student("Peter",35);
        studentObject.display();
    }

}

Output