Change a double value

Hi,

I am building a small accounting program that I will import transactions from a downloaded bank file.
Most of my code is getting pretty good, but I have one problem:
When I import the data from the file, the amounts in the file are either positive or negative (in or out)
Now inside my program I want to make 2 transactions: One negative and one positive.
So the question is: How can i change the amount from being positive to negative or negative to positive based on the amount from the file?

Show us what you've got and where you're getting errors/unexpected results.

I am not getting any results yet, because I am not sure how to do it...

Code:

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Double value1 = -150.00;

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If this value is negative, like this example, I would like to make a new value like this:

Code:

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Double value2 = 150.00;

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And vice versa....

Code:

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Your value * -1

---

will switch it from negative to positive and vice versa.

Code:

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String Amount  = textAmount.getText();
Amount = Amount.replace(" ", "");
Amount = Amount.replace(",", ".");
double amount;
        if (!"".equals(Amount))
        {
            amount = Double.parseDouble(Amount);
        }else{
            amount = 0;
        }
       
double amount2 = * -amount;

---

But I get an error:

Code:

---

illegal start of expression

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The *(asterisk) has to be in front of the =(equals)

Code:

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// +150.00
double amount1 = 150.0;
//-150.00
double amount2 = amount1 * -1;

---

Code:

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String Amount  = textAmount.getText();
Amount = Amount.replace(" ", "");
Amount = Amount.replace(",", ".");
double amount;
if (!"".equals(Amount))
        {
            amount = Double.parseDouble(Amount);
        }else{
            amount = 0;
        }
       
double amount2 = amount * -1;

---

Work perfect. Thanks JBelg!! :(y):