Extracting The First Digit Of Any Number Using BlueJ Program

In this program user will enter any number and the first digit of the number is to be extracted.

Suppose the number is 12343 and the output will be 1.

import java.io.*;

class Num

{

  int number,i,p,len;

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

 public void takeNumber()throws Exception

 {

  System.out.println("Enter the number:");

  number=Integer.parseInt(br.readLine());

  p=number;

  i=0;

  while(p>0)

  {

  i++;

  p=p/10;

  }

  p=(int)Math.pow(10,i-1);

  p=number/p;

  System.out.println("First digit of the number is="+p);

  }

  public static void main(String args[])throws Exception

  {

   Num object=new Num();

   object.takeNumber();

   }

   }

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