The , symbol is used to group numbers : Decimal « Data Type « Java

1. Java
2. Data Type
3. Decimal

The , symbol is used to group numbers

  

import java.text.DecimalFormat;
import java.text.NumberFormat;

public class Main {
  public static void main(String[] argv) throws Exception {

    NumberFormat formatter = new DecimalFormat("#,###,###");
    String s = formatter.format(-1234.567);
    System.out.println(s);
    s = formatter.format(-1234567.890);
    System.out.println(s);

  }
}
// -1,235
// -1,234,568

   
    
  

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