Thread: Alternative to the scanner method

 
import java.util.*;
import javax.swing.*;
 
public class CH4Q16 {
 
 
    public static void main(String[] args) {
 
        System.out.print("Enter The Double Number: ");
        Scanner x = new Scanner(System.in);
        double num=x.nextDouble(); 
        for(int i=1;i<16;i++) 
        {
            System.out.println(Math.pow(num, i)); 
        }
    }
 
}

This code takes a number (a double) from the user and prints it's squares all teh way to the 15th power. The code works but my question is to find an alternative to the "scanner x = new Scanner(System.in);" to get the number from the user.

Because I have not covered the scanner method in my course yet hence this is was not accepted by my teacher. I learned how to do it this way by reading tutorials online in the first place but I was limited to what I have covered only.

Here's what I did after re-reading my book.

import java.util.*;
import javax.swing.*;
 
public class CH4Q16 {
 
 
    public static void main(String[] args) {
 
    	Random myNums = new Random();
 
    	String value;
 
       value = JOptionPane.showInputDialog("Enter The Double Number: ");
        double  num = Double.parseDouble(value); 
        double num1=myNums.nextDouble(); 
        for(int i=1;i<16;i++) 
        {
            System.out.println(Math.pow(num, i)); 
        }
    }
 
}

Don't know why I didn't think of that earlier <.<

Thanks for the quick reply though Hello ^^
Hopefully when I improve I can help around here in the future but can't do much now as it's been only a month since I started Java