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/** Provides a collection of convenience methods for processing and
* creating objects with String value components.
*
* @author Campbell Boucher-Burnett (boucherb@users dot sourceforge.net)
* @author Fred Toussi (fredt@users dot sourceforge.net)
* @author Nitin Chauhan
* @version 1.9.0
* @since 1.7.0
*/
public class Main {
/**
* If necessary, adds zeros to the beginning of a value so that the total
* length matches the given precision, otherwise trims the right digits.
* Then if maxSize is smaller than precision, trims the right digits to
* maxSize. Negative values are treated as positive
*/
public static String toZeroPaddedString(long value, int precision,
int maxSize) {
StringBuffer sb = new StringBuffer();
if (value < 0) {
value = -value;
}
String s = Long.toString(value);
if (s.length() > precision) {
s = s.substring(precision);
}
for (int i = s.length(); i < precision; i++) {
sb.append('0');
}
sb.append(s);
if (maxSize < precision) {
sb.setLength(maxSize);
}
return sb.toString();
}
}