二進位轉十進位

package zx;

import javax.swing.JOptionPane;

public class BinToDec {

 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  int number;
  int dinary;
  int decimalist=0;
  int i;
  int n=1;
  
  String numberString;
  
  numberString=JOptionPane.showInputDialog("Enter a binary number:");
  number=Integer.parseInt(numberString);
  
  dinary=number;
  
  while(dinary>0)
  {
   i=dinary%10;
   i=i*n;
   decimalist+=i;
   dinary=dinary/10;
   //JOptionPane.showConfirmDialog(null, " "+dinary);
   n=2*n;
  }
  
  JOptionPane.showMessageDialog(null, "binary number is: "+number+"/n decimalist number is: "+decimalist);
  
  System.exit(0);
 }

}