Is there any way to convert a BigInteger
into a BigDecimal
?
有没有办法将BigInteger转换为BigDecimal?
I know you can go from a BigDecimal
to a BigInteger
, but I can't find a method to go the other way around in Java.
我知道你可以从BigDecimal转到BigInteger,但我找不到一种方法来反过来使用Java。
4 个解决方案
#1
35
You have a parameterized constructor for that.
你有一个参数化的构造函数。
BigDecimal(BigInteger val)
BigDecimal(BigInteger val)
#3
5
public BigDecimal(BigInteger unscaledVal, int scale)
Translates a BigInteger
unscaled value and an int
scale into a BigDecimal
. The value of the BigDecimal
is (unscaledVal/10scale).
public BigDecimal(BigInteger unscaledVal,int scale)将BigInteger非标度值和int标度转换为BigDecimal。 BigDecimal的值是(unscaledVal / 10scale)。
Parameters:
参数:
unscaledVal
- unscaled value of the BigDecimal
. scale - scale of the BigDecimal.
unscaledVal - BigDecimal的未缩放值。 scale - BigDecimal的比例。
Throws:
抛出:
NumberFormatException
- scale is negative
NumberFormatException - 比例为负数
Good luck!!!
祝你好运!!!
#4
1
BigInteger I = new BigInteger("123")
BigDecimal bd = BigDecimal.valueOf(I.intValue());
System.out.println("The Value of bd : "+ bd);
This will convert the BigInteger value of I into BigDecimal value.
这会将I的BigInteger值转换为BigDecimal值。
#1
35
You have a parameterized constructor for that.
你有一个参数化的构造函数。
BigDecimal(BigInteger val)
BigDecimal(BigInteger val)
#2
#3
5
public BigDecimal(BigInteger unscaledVal, int scale)
Translates a BigInteger
unscaled value and an int
scale into a BigDecimal
. The value of the BigDecimal
is (unscaledVal/10scale).
public BigDecimal(BigInteger unscaledVal,int scale)将BigInteger非标度值和int标度转换为BigDecimal。 BigDecimal的值是(unscaledVal / 10scale)。
Parameters:
参数:
unscaledVal
- unscaled value of the BigDecimal
. scale - scale of the BigDecimal.
unscaledVal - BigDecimal的未缩放值。 scale - BigDecimal的比例。
Throws:
抛出:
NumberFormatException
- scale is negative
NumberFormatException - 比例为负数
Good luck!!!
祝你好运!!!
#4
1
BigInteger I = new BigInteger("123")
BigDecimal bd = BigDecimal.valueOf(I.intValue());
System.out.println("The Value of bd : "+ bd);
This will convert the BigInteger value of I into BigDecimal value.
这会将I的BigInteger值转换为BigDecimal值。