Java Android stop getting recurring decimal number

Question

I'm doing a calculation on android studio (java) and the answer that I get back is like 4.654783632444251. I don't want the long answers. Preferably Two Decimal places would be ideal. Using Double.parseDouble

score 1 · Answer 1 · answered Mar 25 '17 at 01:13

1

You can round it to two decimal places:

Math.round(myNumber * 100) / 100

Or you can format it using

String.format("%.2f", myNumber)

The second method even prints the decimal places if they are 0.

answered Mar 25 '17 at 01:13

Aloso

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4
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The user enters the answer in a textfield and the answer is displayed as Textview would your answer work on this – Corey Mar 25 '17 at 01:22
Use `String.format`. It returns a String. – Aloso Mar 25 '17 at 01:24

score 0 · Answer 2 · answered Mar 25 '17 at 01:35

0

protected double round(double value, int places) {
    if (places < 0) throw new IllegalArgumentException();

    BigDecimal bd = new BigDecimal(value);
    bd = bd.setScale(places, RoundingMode.HALF_UP);
    return bd.doubleValue();
}

Just call this method entering your value and 2 places.

answered Mar 25 '17 at 01:35

Eclipse

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1
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I'll give a try – Corey Mar 25 '17 at 03:36

Java Android stop getting recurring decimal number

2 Answers2