Checking Multiple strings with if, else if statement

Question

I am creating a simple lift programme in java. I want to to have four users that are allowed to use the lift i have already got it working for 1 but i cant figure out how to check multiple strings using the one if statement.

import java.util.Scanner;

public class Username

{
public static void main (String[]args)
{

    Scanner kb = new Scanner (System.in);
    String name; 


    System.out.println("Enter your name");
    name = kb.nextLine();
    if (name.equals("barry "))
        System.out.println("you are verified you may use the lift");


    Scanner f = new Scanner(System.in);
    int floor;


    System.out.println("What floor do you want to go to ");
    floor = f.nextInt();

    if (floor >7)
        System.out.println("Invalid entry");
    else if (floor <= 7)
        System.out.println("Entry valid");



    }

    }

Hopefully this is homework and not the beginnings of a real elevator control system. Do you know how to check for the presence of the supplied string in an array of strings? — Jason Aller, Mar 29 '14 at 01:39
Side note: You don't need to say `else if (floor<=7)`; just `else` is good enough, because if we get there we already know that `floor<=7` must be true. (Adding a redundant condition like this _could_ lead to "might not have been initialized" errors in some cases.) — ajb, Mar 29 '14 at 01:48
no im trying to figure it out now, ive now got the strings in an array and i am trying to figure out what to write for the user input statement — user3151959, Mar 29 '14 at 13:27

score 1 · Answer 1 · edited May 23 '17 at 12:11

1

Check out this related question:

Test if a string contains any of the strings from an array

Basically, put the names into an Array of strings, and compare the name entered with each name in the Array.

edited May 23 '17 at 12:11

Community

1
1

answered Mar 29 '14 at 01:39

Ben Harris

1,734
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score 0 · Answer 2 · answered Mar 29 '14 at 01:38

Use the OR symbol "||" or "|".

Such as if (name.equals("barry ") || name.equals("sara"))

For future reference the difference between the two is "||" short circuits. In this situtation, if barry is the name then the second statement for checking against sara will never be executed.

score 0 · Answer 3 · answered Mar 29 '14 at 01:46

0

basically, you need an "Or" gate, this would work:

if(name.equals("name1")||name.equals("name2")||name.equals("name3"))

etc...

answered Mar 29 '14 at 01:46

Bary12

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Checking Multiple strings with if, else if statement

3 Answers3