javamathBigDecimal 比较大小,bigdecimal比较大小

BigDecimal a = new BigDecimal (101);BigDecimal b = new BigDecimal (111);//使用compareTo方法比较//注意：a、b均不能为null，否则会报空指针if(a.compareTo(b) == -1){ System.out.println("a小于b");}if(a.compareTo(b) == 0){ System.out.println("a等于b");}if(a.compareTo(b) == 1){ System.out.println("a大于b");}if(a.compareTo(b) > -1){ System.out.println("a大于等于b");}if(a.compareTo(b) < 1){ System.out.println("a小于等于b");}