/* Longs.java
Purpose:
Description:
History:
Wed Feb 25 10:42:53 2004, Created by tomyeh
Copyright (C) 2004 Potix Corporation. All Rights Reserved.
{{IS_RIGHT
This program is distributed under LGPL Version 3.0 in the hope that
it will be useful, but WITHOUT ANY WARRANTY.
}}IS_RIGHT
*/
package org.zkoss.lang;
/**
* Long relevant utilities.
*
* @author tomyeh
*/
public class Longs {
/** The zero. */
public static final Long ZERO = Objects.ZERO_LONG;
/** urns a String object representing the specified integer, with
* the (at-least) specified digits.
*
* <p>Example: toStringByScale(123, 5) returns "00123",
* toStringByScale(123, 2) returns "123".
*/
public static final String toStringByScale(long val, int digits) {
String sval = Long.toString(val);
int df = digits - sval.length();
if (df <= 0)
return sval;
final StringBuffer sb = new StringBuffer(digits);
while (--df >= 0) sb.append('0');
return sb.append(sval).toString();
}
}
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