ask Yes Or No from Console - Java Language Basics

Java examples for Language Basics:Console

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Description

ask Yes Or No from Console

Demo Code


//package com.java2s;
import java.util.Scanner;

public class Main {
    public static void main(String[] argv) throws Exception {
        String query = "java2s.com";
        System.out.println(askYesOrNo(query));
    }//  w ww.j  a  v a 2  s . c o m

    public static boolean askYesOrNo(String query) {
        String yesOrNo = null;
        boolean validInput = false;
        while (!validInput) {
            System.out.println(query);

            yesOrNo = getConsoleInput();
            validInput = yesOrNo.toUpperCase().equals("Y")
                    || yesOrNo.toUpperCase().equals("N");
            if (!validInput) {
                System.out
                        .println("Invalid input! Please enter /'Y/' or /'N/'");
            }
        }
        return yesOrNo.toUpperCase().equals("Y");
    }

    public static String getConsoleInput() {
        Scanner scanner = new Scanner(System.in);
        return scanner.nextLine();
    }
}

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