浮点数运算出现误差的解决方案

    直接上代码

public static void main(String[] args){
		Double a = 7.77;
		Double b = 3.33;
		System.out.println(a-b);
		System.out.println(new BigDecimal(a.toString()).subtract(new BigDecimal(b.toString())));
	}public static void main(Stri