![Thank You :)
public class Thanks
{
public static void main(String args[])
{
System.out.println("Thank You :)");
}
}](https://image.slidesharecdn.com/java-201011093000/85/This-and-Static-Keyword-12-320.jpg)
This and Static Keyword
- 1. NAME: DHRUMIL I. PANCHAL SEM: 5TH SEMESTER SUBJECT: OBJECT ORIENTED PROGRAMMING WITH JAVA BRANCH: COMPUTER ENGINEERING (B.E.) YEAR: 2019-20 Welcome
- 2. Topic This and Static Keyword
- 3. Contains This Keyword Static Keyword
- 4. This Keyword There can be a lot of usage of java this keyword. In java, this is a reference variable that refers to the current object.
- 5. Usage of This Keyword Here is given the 6 usage of java this keyword. 1. this can be used to refer current class instance variable. 2. this can be used to invoke current class method (implicitly) 3. this() can be used to invoke current class constructor. 4. this can be passed as an argument in the method call. 5. this can be passed as argument in the constructor call. 6. this can be used to return the current class instance from the method.
- 6. Example // A redundant use of this. Box(double w, double h, double d) { this. width = w; this. height = h; this. depth = d; }
- 7. Static Keyword The static keyword in Java is used for memory management mainly. We can apply static keyword with variables, methods, blocks and nested classes. The static keyword belongs to the class than an instance of the class. The static can be: 1. Variable (also known as a class variable) 2. Method (also known as a class method) 3. Block 4. Nested class
- 8. Static Variable If you declare any variable as static, it is known as a static variable. The static variable can be used to refer to the common property of all objects (which is not unique for each object), for example, the company name of employees, college name of students, etc. The static variable gets memory only once in the class area at the time of class loading.
- 9. Static Method If you apply static keyword with any method, it is known as static method. 1. A static method belongs to the class rather than the object of a class. 2. A static method can be invoked without the need for creating an instance of a class. 3. A static method can access static data member and can change the value of it.
- 10. Static Block Is used to initialize the static data member. It is executed before the main method at the time of class loading.
- 11. Reference Inspiration from Prof. Milin Patel and Prof. Hiren Patel Notes of JAVA Textbook of JAVA Images from Google Images Some my own Knowledge
- 12. Thank You :) public class Thanks { public static void main(String args[]) { System.out.println("Thank You :)"); } }