Thread: newbie Question.....

this is my first time using Java.... self Study only.. and i have a problem in looping can any one correct me... or give me sample code...

Scanner user = new Scanner(System.in);
int loopVal;
int end_value = 11;
int total;
int num = 10;

for (loopVal = 1; loopVal < end_value; loopVal++){
total = loopVal * num;
System.out.println(+loopVal +"i want to insert a number using a string that can times to my loopVal "+" Times "+" "+" = " +total);
}

}
}



Thanks

Is your problem loop logic or how to extract an integer from a string? Maybe a little of both?

Please take your question out of the middle of your code and restate it more clearly.

The way that java Strings work is: If you add a numeric variable to a String (with the + operator), the value of the numeric variable is converted to a String and the converted String's value is concatenated with the original String value to form a new single String.

And then...

If you add a String to a String (with the + operator), their values are concatenated to form a new single String.

Furthermore...

If you add a bunch of strings (with + operators), all of their values are concatenated to form a new single String.

public class Z
{
    public static void main(String [] args)
    {
        int x = 42;
        System.out.println("The answer is " + x + ".  Now what was the question?");
    }
}

Output:

The answer is 42. Now what was the question?



Cheers!

Z

Originally Posted by Haseo

My problem is i want to time the loopVal to a User entry.. is it possible to use this kind of code??

total = loopVal * input number here;

Sure. Why not simply get the user's input and then have your loop code immediately after you get the user's input. Where exactly are you stuck?

Originally Posted by curmudgeon

Sure. Why not simply get the user's input and then have your loop code immediately after you get the user's input. Where exactly are you stuck?

here's my code can you correct me....

        int end_value = 11;
        int loopVal;
        int total;
 
        String number;
        System.out.println();
        number = user.next();
 
      for(loopVal = 1; loopVal < end_value; loopVal++){
 
 
          System.out.println("Loop Value "+loopVal);
      }

I try to use this code before System.out.println...
total = loopVal * number; <<<< Error..

1. what error do you see? Please post the whole error message.
2. The Scanner#next() method returns a String when you want to get an int, and that won't work for you.
3. Scanner has a better method for getting an int. Have a look at the Scanner API and see if you can figure out what it is.
4. You're declaring number as a String variable. Don't you want this to be an int variable instead?

I think you miss initial value of n variable ....