Can I have macros in Java source files

Question

In my program I\'m reading integers form console many times. Every time, I need to type this line.

new Scanner(System.in).nextInt(); 

I\'m

Answer 1

There is no macro concept in Java. If you're doing that a lot, it's a bad idea to instantiate a new Scanner each time. Define a public static Scanner then reuse it each time:

public class YourClass {
  public static final Scanner SCANNER= new Scanner(System.in);
  ...
}

// Somewhere in your code
YourClass.SCANNER.nextInt();