Java - Comparing two BigDecimal numbers

Comparing two BigDecimal Numbers :

java.math.BigDecimal.compareTo(BigDecimal val) compares the BigDecimal Object with the specified BigDecimal value.
JAVA PROGRAM :

import java.math.BigInteger;

public class BigIntegerTest {

public static void main(String[] args) {

// create 2 BigInteger objects

        BigInteger big1, big2;

        big1 = new BigInteger("6"); //first number

        big2 = new BigInteger("3"); // second number

        // create int object

        int res;

        // compare bi1 with bi2

res = big1.compareTo(big2);  

if( res == 0 )

System.out.println( "Both values are equal " );

else if( res == 1 )

System.out.println( "First Value is greater " );

else if( res == -1 )

System.out.println( "Second value is greater" );

System.out.println("comparing with zero");

if(big1.compareTo(BigInteger.ZERO)> 0)

{

System.out.println("bi1 is greater ");

}

       }

}