Difference between Static and Instance method working in java Program -

class Difference {
  public static void main(String[] args) {
    display(); // calling without object
    Difference t = new Difference();
    t.show(); // calling using object
  }

  static void display() {
    System.out.println("Programming is amazing.");
  }

  void show() {
    System.out.println("Java is awesome.");
  }
}

Step-by-Step Explanation:

1. Class Declaration:

The class Difference consists of the following two methods: display() is a static method, and show() is a non-static method.
The method is main is the entry of the program.

2. Static Method Call (display())

display(); // calling without object

A static method can be called directly from the main method without creating an object.
The display() method is static, thus it is called directly because no instance (object) of the class has to be created.
When the display() method is called, it prints the following message:

Programming is amazing.

3. Non-Static Method Call (show()):

Difference t = new Difference();

t.show(); // calling using object

Non-static methods call for an object to be invoked.
In this example, an object of the class Difference is created by using the keyword new Difference(). This object is addressed through the variable t.
The method show() is called with the object t. This outputs the message:

Java is awesome.

4. Method Declarations:

static void display()

System.out.println(“Programming is amazing.”);

}

The display() method is static, in other words, it is a property of the class itself and not of an instance of the class.
It prints “Programming is amazing.”.

void show() {

System.out.println(“Java is awesome.”);

}

The show() method is instance – it is a method of an instance of the class.
It outputs to the console “Java is awesome.”.

Program Execution Flow

1. A call to the main method occurs.

2. Direct call since the display() is a static method.

It prints the statement to console: “Programming is amazing.”

3. Declaration of an instance of the class Difference (Difference t = new Difference(); )

4. use an object called t to make the call: t.show().

It displays: Java is awesome.

Static method (display() ): It is called without declaring an instance of the class. It is from the class.
Non-static method (show() ): This requires an object of the class to be invoked. It belongs to an instance of the class.