Scan string and int from standard input

gistfile1.txt

import java.io.Console;
import java.util.Scanner;

public class App {
	public void perform() {

		firstScanner();

		secondScanner();

	}

	public void firstScanner() {

		String str = "";

		Console con = System.console();
		if (con != null) {

			try (Scanner sc = new Scanner(con.reader())) {

				System.out.println("Enter a string: ");

				if (sc.hasNext()) {
					str = sc.next();
					sc.nextLine();
				}

				System.out.println("str = " + str);

			} catch (Exception e) {
				System.out.println("Exception message: " + e.getMessage());
			}
		} else {
			System.out.println("System console not available");
		}
	}

	public void secondScanner() {

		int num = 0;

		Console con = System.console();
		if (con != null) {

			try (Scanner sc = new Scanner(con.reader())) {

				System.out.println("Enter a number: ");

				if (sc.hasNextInt()) {
					num = sc.nextInt();
					sc.nextLine();
				}

				System.out.println("num = " + num);

			} catch (Exception e) {
				System.out.println("Exception message: " + e.getMessage());
			}
		} else {
			System.out.println("System console not available");
		}
	}

	public static void main(String[] args) {
		App app = new App();

		app.perform();

		System.exit(0);
	}
}

thank you man for this gist it helped me a lot to solve a closed System.in problem. I was really astonished when I found out after a hard work that if System.in, a BufferedInputStream from the keyboard, is closed, as happens when the Scanner object is closed, you are closing a System stream that cannot be re-opened.