import java.math.BigDecimal;

class P05_UseBigDecimal {
	
	public static void main(String[] args)
	{
		System.out.println(2.0 - 1.1);	//0.8999999999999999
		
		BigDecimal xx;
		xx = new BigDecimal("2.0");
		xx = xx.subtract(new BigDecimal("1.1"));
		System.out.println(xx.toString());	//0.9
		
		xx = new BigDecimal("98765987659876598765");
		System.out.println(xx.toString());	//98765987659876598765
		xx = xx.add(xx); //xx = xx+xx;
		System.out.println(xx.toString());	//197531975319753197530
	}
}