Decimal to binary conversion in java

Java code to convert decimal number into binary number 

import java.io.*;

class Test {

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

    long n,m,no=0l,a=1,rem;

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

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

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

    m=n;

    while(n!=0){

          rem=n%2;

          no=no+rem*a;

          n=n/2;

          a=a*10;

    }

    System.out.println("The value "+m+" in binary is"+no);

    }

}

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