/**
* 将数字转化为字符串,并格式化为指定的长度,不够位数的前面补指定字符
* Input: 1, 5, '0'
* Output: "00001"
*
* @return java.lang.String
* @param value - 要转换的数字
* @param number - 要补齐的位数
* @param c char - 补充的字符
*/
public static String leftPad(int value, int number, char c) {
String s = "";
String temp = (new Integer(value)).toString();
if (temp.length() <= number) {
for (int i = 0; i < number; i++) {
s += c;
}
s = s.substring(0, number - temp.length()) + temp;
}
else {
System.out.println("Error: " + number + "'s length is " + temp.length() + ", it's bigger than " + number + ".");
}
return s;
}
* 将数字转化为字符串,并格式化为指定的长度,不够位数的前面补指定字符
* Input: 1, 5, '0'
* Output: "00001"
*
* @return java.lang.String
* @param value - 要转换的数字
* @param number - 要补齐的位数
* @param c char - 补充的字符
*/
public static String leftPad(int value, int number, char c) {
String s = "";
String temp = (new Integer(value)).toString();
if (temp.length() <= number) {
for (int i = 0; i < number; i++) {
s += c;
}
s = s.substring(0, number - temp.length()) + temp;
}
else {
System.out.println("Error: " + number + "'s length is " + temp.length() + ", it's bigger than " + number + ".");
}
return s;
}
本人有时确实很懒的说
但绝对很真挚的很感谢所有回帖的朋友们
:)
<%! public String leftPad(int value, int number, char c) {
String s = "";
String temp = (new Integer(value)).toString();
if (temp.length() <= number) {
for (int i = 0; i < number; i++) {
s += c;
}
s = s.substring(0, number - temp.length()) + temp;
}
else {
System.out.println("Error: " + number + "'s length is " + temp.length() + ", it's bigger than " + number + ".");
}
return s;
}
%>
<%!
/**
* 将数字转化为字符串,并格式化为指定的长度,不够位数的前面补指定字符
* Input: 1, 5, '0'
* Output: "00001"
*
* @return java.lang.String
* @param value - 要转换的数字
* @param number - 要补齐的位数
* @param c char - 补充的字符
*/
public String leftPad(int value, int number, char c) {
String s = "";
String temp = (new Integer(value)).toString();
if (temp.length() <= number) {
for (int i = 0; i < number; i++) {
s += c;
}
s = s.substring(0, number - temp.length()) + temp;
}
else {
System.out.println("Error: " + number + "'s length is " + temp.length() + ", it's bigger than " + number + ".");
}
return s;
}
%>
<%
int aa = 21;
String ff = leftPad(aa, 10, '0');
out.print(""+ff+"");
%>