Java Data Type How to - Convert Double to String value preserving every digit








Question

We would like to know how to convert Double to String value preserving every digit.

Answer

import java.text.NumberFormat;
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public class Main {
  public static void main(String[] args) {
    double value = 9.01236789E9;
    String text = String.format("%.0f", value);
    System.out.println(text); // 9012367890

    NumberFormat format = NumberFormat.getNumberInstance();
    format.setMaximumFractionDigits(0);
    format.setGroupingUsed(false);
    System.out.println(format.format(value)); // 9012367890
  }
}