need help with this: multiplication table

[MsIceCold]

Hello everyone! I am new to java programming. I'm trying to do the exercises in the book that I am reading.

I would to ask for a help. I am supposed to make a multiplication table. It asks a user to enter the size of the multiplication table then the output should be something like this:

0 1 2
1 1
2 2 4
3 3 6
4 4 8
5 5 10

(with "1 tab" space between columns)

Now with these codes I wrote, I am only getting 1 column. What must I do? Please help me. Thank you very much!

import java.io.*;

public class MultiplicationTable {

    public static void main(String args[]) throws IOException {

        BufferedReader in=new BufferedReader (new InputStreamReader(System.in));

        int num;

        System.out.println("Enter a number: ");
        
        num=Integer.parseInt(in.readLine());

        for (int x=0;x<num;x++) {
            for (int y=0;y<num;y++) {
                System.out.println(x*y);
            }
        }
    }
}

[JosAH]

Look at the System.out.print( ... ) method versus the System.out.println( ... ) method.

kind regards,

Jos

[Norm]

I am only getting 1 column

That's what you code outputs: System.out.println(x*y)
You need to add more stuff in between the (...)s to get more columns

[MsIceCold]

I've added System.out.print("\t"); before the System.out.print(x*y);

Now I get the columns but only 1 row. lol:confused:

[Norm]

What is on that row?
Do you know how to tell the output to go onto a new line?
Two ways: use println() or add a "\n" (newline character) in the print() statement.

[MsIceCold]

I got it already, the rows and the columns. My problem now is the output is not aligned. How can I aligned them?

OUTPUT:

[Norm]

You need to pad the data for each column with spaces so that each column is the same width.
I use a method which takes a string and pads it on the left with enough spaces so that the results are all the same width. For example to create columns 5 characters wide if it contained a 1 it would pad with 4 spaces on the left. If the column would contain 121 it would pad with 2 spaces on the left.

[j2me64]

the default alignment is left. not happy?