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1. Anatt Arbin
06

2. • Know and explain what a command-line
argument is
• Get input from the user using command-line
argument
• How to pass command-line arguments in
Command prompt
Objective
s

3. • Command line arguments means a way to pass parameters
to the main function while executing the program.
• A Java application can accept any number of arguments
from the command-line.
• Command-line arguments allow the user to affect the
operation of an application.
• The user enters command-line arguments when invoking
the application and specifies them after the name of the
class to run.
Command-line
Arguments

5. • In Java, when you invoke an application, the
runtime system passes the command-line
arguments to the application's main method via
an array of Strings.
public static void main( String [] args)
• Each String in the array contains one of the
command-line arguments.
How Java Application Receive Command-line
Arguments

6. args[ ] array

7. } }

10. This keyword is a reference variable that
refers the current object in java. This
keyword can be used for call current class
constructor.
This keyword in
java

11. What is this Keyword
this is a keyword in Java. Which can be used inside
method or constructor of class.
It(this) works as a reference to current object whose
method or constructor is being invoked. this keyword
can be used to refer any member of current object from
within an instance method or a constructor.

12. public class Main {
int x;
// Constructor with a parameter
public Main(int x) {
this.x = x;
}
// Call the constructor
public static void main(String[] args) {
Main myObj = new Main(5);
System.out.println("Value of x = " + myObj.x);
}}
Example Using this with a class attribute
(x):

13. Thank
you