Thread: Boolean Input Question.

Hi, This is a really simple question but I've been stuck on this for a while now. Does this line of code read a boolean input from the console?

userInput = TextIO.getlnBoolean();

I have looked up the textbook I am using(Introduction to Programming Using Java, Sixth Edition by David Eck) and this is what it says to put for a boolean input. The bottom console says that there is an illegal boolean input value. But the console wont let the user input anything the program just stops at that line. The console highlights this line as the problem but I can't see a problem.

Any help would be appreciated.

Thanks David

Hi,

The error message is:

Exception in thread "main" java.lang.IllegalArgumentException:

Illegal boolean input value.
Expecting one of: true, false, t, f, yes, no, y, n, 0, or 1
at TextIO.errorMessage(TextIO.java:950)
at TextIO.getBoolean(TextIO.java:826)
at TextIO.getlnBoolean(TextIO.java:619)
at Definitions.guess(Definitions.java:163)
at Definitions.main(Definitions.java:22)

Thanks David

Hi,

As I said the program dosen't allow me to enter a thing it just stops there and the error message comes up. I'm sorry I don't know what the method's doc is.

Thanks David

Hi,

Thanks I will try the scanner class.

David