Hi friend,


Do some changes for compile and run the code correctly

int num2= numbers*2;
B.add(num2);


Code :

import java.io.*;
import java.util.ArrayList;


public class CopynDouble1
{
public static void main(String[] param){
try{
BufferedReader n = new BufferedReader(new InputStreamReader(System.in));

ArrayList<Integer> A = new ArrayList<Integer>(); //array A
ArrayList<Integer> B = new ArrayList<Integer>(); //array B

System.out.print("Input number: ");
String userInput = n.readLine(); //read Input;
int numbers = Integer.parseInt(userInput); //integer version of userInput;

while(numbers != 0){
A.add(numbers);
int num2= numbers*2;
B.add(num2);
System.out.println(B); // Don't know how to print array B in this case.
System.out.print("Input number: ");
userInput = n.readLine();
numbers = Integer.parseInt(userInput);
}
}


catch(Exception e){
}
}
}

For read more information :
http://www.roseindia.net/java/

Thanks

Hi

B is ur ArraayList Object, So u can.t use any aritmatic operation on that object.

in ur code just modify
while(number !=0){

A.add(number)
B.add(number*2);

}

Thanks
Rajanikant

ThankYou Very Much Rajanikant and Deepak.
I can't ThankYou Guys enough for helping me in solving this code.