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[ahmedzica]

Hello everybody,

I'm trying to write a program that takes a number from 1 to 10 as an input and returns it to String form as an output (i.e. input=1, output=one)
I've already written my code. but it's not working. can you cech it?

package writenumbers;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;

public class Main {

   
    public static void main(String[] args) {
       
        BufferedReader dataIn = new BufferedReader (new InputStreamReader(System.in));
       
        int num;

        System.out.println("Insert A number from 1 to 10");

        String[] writeNumber={"One","Two","Three","Four","Five","Six","Seven","Eight","Nine","Ten"};

       try{
           num=dataIn.read();
           for (int i=1;i<=10;i++){
                if(num==i){
                System.out.println("You've entered"+ writeNumber[i]);
                }
           }
       }catch (IOException e){}

       


    }

}

Waiting for your response,
Thanks

[ahmedzica]

I'd like also to know how to separate the input I'm getting from the user in order to calculate the average of three numbers as a "Grades"

[Norm]

how to separate the input I'm getting from the user

How is the input being done by the user?
Does it come all on one line separated by spaces or ; or ??? what
or is each number on a separate line?

What values does the read() method return? Are they usable by your code? Are they what you expect?

You should look at using the Scanner class. It has several methods that make reading input from users easier.

[ahmedzica]

How is the input being done by the user?
Does it come all on one line separated by spaces or ; or ??? what
or is each number on a separate line?

What values does the read() method return? Are they usable by your code? Are they what you expect?

You should look at using the Scanner class. It has several methods that make reading input from users easier.

I got it thanks :)

[ozzyman]

You have a problem here:

String[] writeNumber={"One","Two","Three","Four","Five","Six","Seven","Eight","Nine","Ten"};
num=dataIn.read();
for (int i=1;i<=10;i++){
if(num==i){
System.out.println("You've entered"+ writeNumber[i]);
}
}

Running this code would give you an ArrayIndexOutOfBoundsException when i==10.

Also, it's not the best way to limit your input (running a loop of all possible values!).

Just create a MAX and and MIN like this:

private final int inputMAX = 10;
private final int inputMIN = 1;

then control your input like this:

int number = Math.Min(Math.Max(num, inputMIN), inputMAX);

then you can write it directly:

System.out.println("You've entered " + writeNumber[number-1]);

[ahmedzica]

Thanks man :)