public void setNegativePrefix(String newValue)

// Java program to illustrate the
// setNegativePrefix() method
  
import java.text.DecimalFormat;
  
public class GFG {
  
    public static void main(String[] args)
    {
  
        // Create a DecimalFormat instance
        DecimalFormat deciFormat = new DecimalFormat();
  
        // Set a negative prefix value
        deciFormat.setNegativePrefix("negative");
  
        // Print a number with negative prefix set
        System.out.println(deciFormat.format(-123.45));
    }
}

negative123.45