import java.math.BigDecimal;
class MyMath {
public static double round(double num, int scale) 
{
BigDecimal big = new BigDecimal(num);
BigDecimal result = big.divide(new
BigDecimal(1), scale,
BigDecimal.ROUND_HALF_UP);
return result.doubleValue() ;
}
}
public class TestDemo {
public static void main(String[] args) {
System.out.println(MyMath.round(5.433677, 
2));
}
}