Java BigDecimal 算术运算
算术运算
BigDecimal bignum1 = new BigDecimal("10"); BigDecimal bignum2 = new BigDecimal("5"); BigDecimal bignum3 = null;
加法:add
bignum3 = bignum1.add(bignum2);
System.out.println("求和:" + bignum3);
减法:subtract
bignum3 = bignum1.subtract(bignum2);
System.out.println("求差:" + bignum3);
乘法:multiply
bignum3 = bignum1.multiply(bignum2);
System.out.println("乘法积:" + bignum3);
除法:divide
bignum3 = bignum1.divide(bignum2);
System.out.println("除法结果:" + bignum3);
整数末尾0的问题
bigDecimal.setScale(保留小数位数)