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simple program
i was told to write a program to test if the value is digit or not .. import java.util.Scanner;
public class Test_For_Digit {
public static void main(String[] args) {
Scanner input = new Scanner (System.in);
System.out.println("enter any value of your choice ");
double n = input.nextDouble();
if (n >=0){
System.out.println("you enter digit which is = " + n);
}
else{
System.out.println("you eneter = " + n + " and its not a digit");
}
}
} if i press alphabet it will trigger an error help me out
Re: simple program
Do you have any specific java programming questions?
What happens when you try to compile and execute your program?
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Re: simple program
The error is that instead of me to enter integer I enter string.
Re: simple program
Yes, Strings are the normal input to a program from a keyboard. It is hard to enter integer values from the keyboard. "9" is a String not an integerinstead of me to enter integer I enter string.
The String input can be converted to an int be using some method like Integer.parseInt() or some of the Scanner class's methods
If you don't understand my answer, don't ignore it, ask a question.
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