Static members in Java

Static members:

• Every application has 2 Contexts
  • Static
  • Non static
• Program execution always starts with Static Context
• Static – Common area to access in the application.
• Java Supports 4 static members
  • Static main() method
  • Static block
  • Static variable
  • Static user method

Empty class:

class Pro 
{
	// Empty class
}

Save file as :  Pro.java
Compile : No error
Run : Error : No main() method to start

Main() method:

• Every java program execution starts with main() method.
• If we don’t define main(), JVM gives runtime error.
• Main() automatically executes by JVM.

class Pro 
{
	public static void main(String args[])
	{
		System.out.println("Main method");
	}
}