How can I read input from the console using the Scanner class in Java?

Question

How could I read input from the console using the Scanner class? Something like this:

System.out.println(\"Enter your username: \");
Scanner = i         


        

Answer 1

1. To read input:

   Scanner scanner = new Scanner(System.in);
   String input = scanner.nextLine();
   

2. To read input when you call a method with some arguments/parameters:

   if (args.length != 2) {
       System.err.println("Utilizare: java Grep  ");
       System.exit(1);
   }
   try {
       grep(args[0], args[1]);
   } catch (IOException e) {
       System.out.println(e.getMessage());
   }