Interacting with a Java Program

• How do we read data?

• Something similar to Python

  • Use the Console class

  Console cons = System.console();
  
  String username = cons.readLine("Username: ");
  
  char[] passwd = cons.readPassword("Password: ");
  

• More generally , we can use Scanner class

  import java.util.Scanner;  // Must import the Scanner class.
  Scanner in = new Scanner(System.in);
  String name = in.nextLine();
  int age = in.nextInt();
  

• For output in Java, use either System.out.println or System.out.print.