Floating to 2 decimal places

• Java

I want to add two decimals to a floating point number

I have 2 floating point values:

1.985
29.294998

They all need to be rounded, so I'm done with the following:

1.99
29.30

When I use the following methods:

public static Float precision(int decimalPlace,Float d) {

    BigDecimal bd = new BigDecimal(Float.toString(d));
    bd = bd.setScale(decimalPlace,BigDecimal.ROUND_HALF_UP);
    return bd.floatValue();
  }

The result is:

1.99
29.29

Solution

Because you use BigDecimal ROUND_ HALF_ Up, so 29.294998 is rounded to 29.29 You may want to use BigDecimal ROUND_ UP.

Check BigDecimal doc for more information about each rounding

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