How do I get a String input to accept a possible integer in Java?

Question

I'm a very beginner at Java, and I'm creating a program that accepts user input in Java, and I'm trying to create a string that accepts strings or integers as responses. However, when I type in the acceptable integer, it won't recognize the answer. Here is the code:

System.out.println("How much time you you want to spend on this? Less than 30 mins, less than an hour, or more? Type \"30\", \"h\", or \"m\".");
    String ls = console.next();

    while (!ls.equalsIgnoreCase("h") && !ls.equalsIgnoreCase("m") && ls.equalsIgnoreCase("30")) {
        System.out.println("Type shit properly.");
        ls = console.next();
    }

    if (ls.equalsIgnoreCase("30")) {
        System.out.println("Do you want to do something fun? Y/N.");
        String dare = console.next();
        while (!dare.equalsIgnoreCase("y") && !dare.equalsIgnoreCase("n")) {
            System.out.println("Seriously?");
            dare = console.next();
        }
    }

Every time I type 30 into the console, it gives me my error report "Type shit properly" instead of proceeding to the "if ls equals 30" section. It works fine for the m and h options, just not the number. I thought strings accepted numbers as well; was I wrong? How do I get this to accept both Strings AND integers as input?

Elliott Frisch · Accepted Answer · 2015-11-27 04:10:48Z

1

Change

&&ls.equalsIgnoreCase("30")

to

&&!ls.equalsIgnoreCase("30")

or if you want to allow any number, you could use String.matches(String)

&&!ls.matches("\\d+")

edited Nov 27, 2015 at 4:10

answered Nov 27, 2015 at 4:08

Elliott Frisch

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2 Comments

Ray25Lee Over a year ago

facepalm Thank you very much. Human error. One of the dumbest things I've done all day. (Thanks for answering.) Cheers.

Ray25Lee Over a year ago

Interesting; I didn't know about the allowing any number code; that'll definitely be useful, later on.

Vivek · Accepted Answer · 2015-11-27 04:21:41Z

0

use !ls.matches("30") instead of ls.equalsIgnoreCase("30")

answered Nov 27, 2015 at 4:21

Vivek

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