how to input in java

                                    Scanner in = new Scanner(System.in);
      System.out.print("Please enter hour 1: ");
      int hour1 = in.nextInt();
      System.out.print("Please enter hour 2: ");
      int hour2 = in.nextInt();
      System.out.print("Please enter minute 1: ");
      int min1 = in.nextInt();
      System.out.print("Please enter minute 2: ");
      int min2 = in.nextInt();

                                    import java.util.Scanner;
...
  Scanner console = new Scanner(System.in);
  int num = console.nextInt();
  console.nextLine() // to take in the enter after the nextInt() 
  String str = console.nextLine();

                                    import java.util.*; //or java.util.scanner
Scanner doit = new Scanner(System.in);//Name the scanner
System.out.println("Username:");//It will specify username
String username = doit.next();//Use scanner and add .next for string .nextInt for int and follows

                                    import java.util.*;
class a 
{
    void main ()
    {
        Scanner in = new Scanner(System.in);
      System.out.print("Please enter you age: ");
      int age = in.nextInt();
      System.out.print("Please enter today's date: ");
      int date = in.nextInt();
      System.out.print("Please enter current month: ");
      int month = in.nextInt();
      System.out.print("Please enter current year: ");
      int year = in.nextInt();
    }
}
// ENJOY!!!!!!!

                                    Scanner sc = new Scanner(System.in);
String s = sc.next();
int n = sc.nextInt();
double d = sc.nextDouble();
float f = sc.nextFloat();

// more fast way
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String s = br.readLine(); // read line
int c = br.read();        // read single char