将布尔值转换为布尔值（java）

Question

Im trying to convert a String to BigDecimal.

I found that I need to set DecimalFormat's setparseBigDecimal to true then call parse. Unfortunately I keep getting the error that setParseBigDecimal only accepts boolean (not Boolean). I get that so I tried to do this

DecimalFormat.setParseBigDecimal(Boolean.TRUE.booleanValue())

But I still get the the same error. I even tried these but still didnt work

DecimalFormat.setParseBigDecimal(1)
DecimalFormat.setParseBigDecimal(true)
boolean x= true;
DecimalFormat.setParseBigDecimal(x)

Here's the code.

DecimalFormat.setParseBigDecimal(Boolean.TRUE.booleanValue())
DecimalFormat.parse(AmountUtil.formatForSavingOrConversion(taxAmountList.get(i)),0)

Answer 1

DecimalFormat.setParseBigDecimal(Boolean.TRUE.booleanValue())
DecimalFormat.parse(AmountUtil.formatForSavingOrConversion(taxAmountList.get(i)),0)

won't work because setParseBigDecimal and parse are NOT static methods, you need create an instance of DecimalFormat before you can use it...

DecimalFormat df = new DecimalFormat();

Then...

df.setParseBigDecimal(Boolean.valueOf(true));
// or
df.setParseBigDecimal(true); 

works fine. You would then use this instance to parse the values you need

Answer 2

If you have an instance of Boolean , using it as a boolean shouldn't cause any errors (the other way doesn't always work). However, if you really want an instance of boolean , use one of the following two:

Boolean object = new Boolean(<<<VALUE>>>);
boolean primitive = object;

OR

Boolean object = new Boolean(<<<VALUE>>>);
boolean primitive = object.booleanValue();

Answer 3

Im trying to convert a String to BigDecimal

Your question subject and what you are actually trying to do is misleading. To parse a string that contains a decimal number you can easily do-

String someValue = "99999999999999999999.99999";
BigDecimal someDecimal = new BigDecimal(someValue);

If your string contains comma or the like, strip them out first.