import java.io.BufferedReader;
import java.io.Console;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Scanner;
import java.util.StringTokenizer;

public class Main {

    public static void main(String[] args) throws IOException {
	// write your code here
        System.out.println("Java Console Input Demo");
        readUsingScanner();
        System.out.print("\n ============= * ==============\n");
        readUsingBufferedReader();
        System.out.print("\n============= * ============== \n");
        readUsingConsole();
    }

    private static void readUsingScanner(){
        System.out.println("Reading inputs using java.util.Scanner");
        Scanner sc = new Scanner(System.in);
        System.out.print("Enter your name: ");
        String name = sc.nextLine();
        System.out.print("Enter your age: ");
        int age = sc.nextInt();

        System.out.printf("You Entered Name: %s Age: %d ", name, age);

    }

    private static void readUsingBufferedReader() throws IOException {
        System.out.println("Reading inputs using java.io.BufferedReader");

        InputStreamReader sr = new InputStreamReader(System.in);
        BufferedReader bf = new BufferedReader(sr);

        System.out.print("Enter your name: ");
        String name = bf.readLine();
        System.out.print("Enter your age: ");

        String ageString = bf.readLine();
        StringTokenizer st = new StringTokenizer(ageString);
        int age = Integer.parseInt(st.nextToken());

        System.out.printf("You Entered Name: %s Age: %d", name, age);

    }

    private static void readUsingConsole(){
        System.out.println("Reading inputs using System.Console");
        Console console = System.console();
        if (console == null){
            System.out.println("No Console Available to read input");
            System.exit(0);
        }
        String name = console.readLine("Enter Your name: ");
        char[] pw = console.readPassword("Hello %s. Please enter password: ", name);

        System.out.printf("Entered name: %s secred: %s", name, String.valueOf(pw));

    }
}