[android help] Multiply strings?

Multiply strings?

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So,i have those : String[] pret = new String[allcant.size()]; String[] totaluri = new String[allcant.size()]; String[] cant = new String[allcant.size()]; I want to do something like this : totaluri[l]=pret[l]*cant[l];` but i can't.I guess i have to make them float? since my input from the edittexts that get the values in the cant and pret are decimals? How can i do that ? I tried this but it won't let me totaluri[l]=Float.parseFloat(cant[l]) *Float.parseFloat(pret[l]); Sotirios Delimanolis 5,44911128 asked 36 mins ago

You need to use Double.parseDouble() or Float.parseDouble() to convert a String to a numerical value with a decimal fraction. You can then use Double.toString() or Float.toString() to convert the result of your calculation back to a `String. Putting this all together: double temp = Double.parseDouble(cant[l]) * Double.parseDouble(pret[l]); totaluri[l] = Double.toString(temp); I strongly suggest that you read Primitive Data Types and Lesson: Numbers and Strings from Oracle's Java Tutorial for more information about using Strings and Java's primitive data types. answered 30 mins ago

	BigDecimal pretBD = BigDecimal.valueOf(pret[i]); BigDecimal cantBD = BigDecimal.valueOf(cant[i]); BigDecimal totaluriBD = pretBD.multiply(cantBD).setScale(2); // Decimals #.## totaluri[i] = totaluriDB.toString(); It is much typing, and no operators (multiply, add), but double is for financial purposes inadequate. 5000 * 0.2 will not be 1000.0. answered 6 mins ago

	What about this? totaluri[l] = new String(Float.parseFloat(cant[l]) * Float.parseFloat(pret[l])); answered 34 mins ago

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