calculating numbers after . (dot) in java

Question

I am new to Java. creating calculator which calculates number from user input. I have 2 Jtextfield in my application where user input numbers. For example in first field user input 45678.230 and in second field 23214.210 which gives me subtraction result is 22464 but everything i want is full result followed by .(dot) so my answer should be 22464.02

String n1opn = n1open.getText();
String n1clsd = n1close.getText();
        
        
double n1intopen = (int) Double.parseDouble(n1opn);
double n1intclose = (int) Double.parseDouble(n1clsd);
double n1ltr = n1intclose - n1intopen;

System.out.println("output  "+ n1ltr);

Did you check here? : https://stackoverflow.com/questions/8819842/best-way-to-format-a-double-value-to-2-decimal-places — Nikhil_10, Mar 08 '21 at 16:30
@Nikhil_10 the question is phrased in a confusing way, but they're basically asking why there's no decimal part in the result, and that's because they're truncating their inputs by casting them to `int`. — Federico klez Culloca, Mar 08 '21 at 16:34
OP, please brush up on the basic data types that java provides — Nikhil_10, Mar 08 '21 at 16:38

score -1 · Accepted Answer · answered Mar 08 '21 at 16:33

-1

You seem to be casting your inputs to an int. Integers don't have any decimal bits so using double is correct for your case!

answered Mar 08 '21 at 16:33

Henry Twist

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calculating numbers after . (dot) in java

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