java - 检查 BigDecimal 值是否在范围内

Question

我有 BiGDecimal 价格，我需要检查它是否在某个范围内。例如应该是3个条件:

if (price >= 0 and price <=500) {
   ....
} else if (price >=500 && price <=1000) {
   ....
} else if (price > 1000) {
   ....
}

如何正确使用 BigDecimal 类型。

Answer 1

这可以使用 .compareTo() 实现方法。例如:

if ( price.compareTo( BigDecimal.valueOf( 500 ) > 0 
     && price.compareTo( BigDecimal.valueOf( 1000 ) < 0 ) {
    // price is larger than 500 and less than 1000
    ...
}

从 JavaDoc 中引用(和释义):

The suggested idiom for performing these comparisons is: (x.compareTo(y) op 0), where op is one of the six comparison operators [(<, ==, >, >=, !=, <=)]

干杯，