Java problem

import java.io.*;
import java.util.*;

/** Demonstrate the Scanner class for input of numbers.**/
public class ScanConsoleApp
{
  public static void main (String arg[]) {

    // Create a scanner to read from keyboard
    Scanner scanner = new Scanner (System.in);

    try {
      System.out.printf ("Input int (e.g. %4d): ",3501);
      int int_val = scanner.nextInt ();
      System.out.println (" You entered " + int_val +"\n");

      System.out.printf ("Input float (e.g. %5.2f): ", 2.43);
      float float_val = scanner.nextFloat ();
      System.out.println (" You entered " + float_val +"\n");

      System.out.printf ("Input double (e.g. %6.3e): ",4.943e15);
      double double_val = scanner.nextDouble ();
      System.out.println (" You entered " + double_val +"\n");

    }
    catch  (InputMismatchException e) {
      System.out.println ("Mismatch exception:" + e );
    }
  } // main

} // class ScanConsoleApp

import java.io.*;
import java.util.Scanner;

public class Sc {

	public static void main(String[] args) throws IOException {
		
		Scanner sc = new Scanner(System.in);
		String ime=sc.nextLine();
		System.out.println("Pozdravljen " + ime);
		
	}

}

if (i == 5)     // to je pogoj (pozor, ni podpičja!)
{               // začetek bloka z ukazi če je pogoj resničen
   System.out.println("I je pet!);
}
else
{               // začetek bloka z ukazi, če pogoj NI resničen
   System.out.println("Ej, I ni pet :(");
}