How to add bigdecimal values?

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I get values from rows in a bigdecimal variable and at the same time want to keep totalling. I used the following code but get NULL POINTER exception like: .myapplication.reportOnTodaysExpenses}: java.lang.NullPointerException.

public static BigDecimal gg = null;

gg= gg.add(new BigDecimal(c.getString(3)));

Posted 14-May-15 22:30pm

S.Rajendran from Coimbatore

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2 solutions

Solution 2

You failed to initialize gg. I would use the very fact that zero is the neutral value of addition:

Java

BigDecimal gg = new BigDecimal(0);
gg = gg.add(new BigDecimal("10.5611111111111111111111111111111111111111111111119"));

Posted 14-May-15 22:47pm

CPallini

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Thomas Daniels · Accepted Answer · 2015-05-14T22:38:00

Solution 1

You get a NullPointerException because you try to call the add function on gg when it's still null. First give gg a value, then call the add function. For example:

Java

public static BigDecimal gg = new BigDecimal(0);

Posted 14-May-15 22:38pm

Thomas Daniels