fork download 
  1. import java.util.Scanner;
  2. import java.util.Map;
  3. import java.util.HashMap;
  4.  
  5. class Ideone {
  6.  
  7.     public static void main(String[] args) {
  8.     	Map<String, String> map = new HashMap<String, String>();
  9.     	map.put("alex", "mightyducks");
  10.     	map.put("emily", "cat");
  11.         Scanner reader = new Scanner(System.in);
  12.         System.out.println("Type your username:");
  13.         String user = reader.nextLine();
  14.         System.out.println("Type your password:");
  15.         String pass = reader.nextLine();
  16.         reader.close();
  17.         if(null != map.get(user) && map.get(user).equals(pass)) {
  18.         	System.out.println("You are now logged into the system!");
  19.         } else {
  20.         	System.out.println("Your username or password was invalid!");
  21.         }
  22.     }
  23. }
Success #stdin #stdout 0.14s 321088KB
comments (?)
stdin 
alex
mightyducks8
stdout 
Type your username:
Type your password:
Your username or password was invalid!
https://ideone.com/SowxBV
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!