My scanner code with comments

import java.util.Scanner; // Necessary to memorize!

public class Main { // Base code

 public static void main(String[] args) { // Base code
  
  Scanner reader = new Scanner(System.in); // Creates our scanner object (declaration and initialization). Reader is the variable name. 
  
  System.out.println("What is your name? "); // can NOT be reader.nextInt because they are incompatible types
  String name = reader.nextLine();  
  
  System.out.println("How old are you? ");
  int age = reader.nextInt(); // Everything must be reader, not scanner. reader.nextLine, because reader is the variable name! 
  reader.nextLine(); // Everytime you do an int or a double, use the command reader.nextLine(); by itself (notice how we don't do it after strings)
  
  System.out.println("How big is ur pp???!?!? ");
  double inches = reader.nextDouble();
  reader.nextLine();
  
  System.out.println("What is your favorite food? "); // You can have multiple string inputs! All you have to do is make a new variable (first it was name, then it was food)
  String food = reader.nextLine();
   
  System.out.println("Hello "+name);
  System.out.println("You are "+age+" years old");
  System.out.println("You like "+food);
  System.out.println("Ur pp is " + inches + " long, lmao lol (skull)");
  
  reader.close();

 } 
}