import java.text.DecimalFormat;
public class Main {
public static void main(String[] argv) throws Exception {
DecimalFormat formatter = new DecimalFormat("00.00E0");
String s = formatter.format(-1234.567); // -12.35E2
System.out.println(s);
s = formatter.format(-.1234567); // -12.35E-2
System.out.println(s);
}
}