java代码如何获取金额小数位数呢?

获取小数位数的实现思路

1.将带金额的小数位转换为字符串
2.将字符串按 . 分隔，然后根据个数转换为位数

private int getNumberDecimalDigits(Double balance) { 
	int dcimalDigits = 0; 
	String balanceStr = Double.toString(balance); 
	int indexOf = balanceStr.indexOf("."); 
	if(indexOf > 0){ 
	dcimalDigits = balanceStr.length() - 1 - indexOf; 
	} 
	return dcimalDigits; 
}