automatix1311
Mitglied
Hallo Forum,
vor kurzem bin ich im Netz auf JS-Datum-Validierung gestoßen. Würde gerne den Algorithmus in meinen Java-Programmen verwenden und habe Schwierigkeiten bei der JS-Java-Übersetzung...
So sieht der JS-Code aus:
Und hier mein Übersetzungsversuch:
Ist schon fast fertig, nur einige wenige Zeilen bereiten mir Probleme: 44-51, 59, 65, 69, 73.
Hatt jemand ne Idee, wie man diese Zeilen java'isieren kann?
Danke.
vor kurzem bin ich im Netz auf JS-Datum-Validierung gestoßen. Würde gerne den Algorithmus in meinen Java-Programmen verwenden und habe Schwierigkeiten bei der JS-Java-Übersetzung...
So sieht der JS-Code aus:
HTML:
//(c) http://www.smartwebby.com/DHTML/date_validation.asp :: überarbeitet
/**
* DHTML date validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
*/
// Declaring valid date character, minimum year and maximum year
var dtCh= ".";
var minYear=1900;
var maxYear=2099;
function isInteger(s){
var i;
for (i = 0; i < s.length; i++){
// Check that current character is number.
var c = s.charAt(i);
if (((c < "0") || (c > "9"))) return false;
}
// All characters are numbers.
return true;
}
function stripCharsInBag(s, bag){
var i;
var returnString = "";
// Search through string's characters one by one.
// If character is not in bag, append to returnString.
for (i = 0; i < s.length; i++){
var c = s.charAt(i);
if (bag.indexOf(c) == -1) returnString += c;
}
return returnString;
}
function daysInFebruary (year){
// February has 29 days in any year evenly divisible by four,
// EXCEPT for centurial years which are not also divisible by 400.
return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28 );
}
function DaysArray(n) {
for (var i = 1; i <= n; i++) {
this[i] = 31
if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
if (i==2) {this[i] = 29}
}
return this
}
function isDate(dtStr){
var daysInMonth = DaysArray(12)
var pos1=dtStr.indexOf(dtCh)
var pos2=dtStr.indexOf(dtCh,pos1+1)
var strDay=dtStr.substring(0,pos1)
var strMonth=dtStr.substring(pos1+1,pos2)
var strYear=dtStr.substring(pos2+1)
strYr=strYear
if (strDay.charAt(0)=="0" && strDay.length>1) strDay=strDay.substring(1)
if (strMonth.charAt(0)=="0" && strMonth.length>1) strMonth=strMonth.substring(1)
for (var i = 1; i <= 3; i++) {
if (strYr.charAt(0)=="0" && strYr.length>1) strYr=strYr.substring(1)
}
month=parseInt(strMonth)
day=parseInt(strDay)
year=parseInt(strYr)
if (pos1==-1 || pos2==-1){
//alert("The date format should be : mm/dd/yyyy")
return false
}
if (strMonth.length<1 || month<1 || month>12){
//alert("Please enter a valid month")
return false
}
if (strDay.length<1 || day<1 || day>31 || (month==2 && day>daysInFebruary(year)) || day > daysInMonth[month]){
//alert("Please enter a valid day")
return false
}
if (strYear.length != 4 || year==0 || year<minYear || year>maxYear){
//alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
return false
}
if (dtStr.indexOf(dtCh,pos2+1)!=-1 || isInteger(stripCharsInBag(dtStr, dtCh))==false){
//alert("Please enter a valid date")
return false
}
return true
}
Code:
//(c) http://www.smartwebby.com/DHTML/date_validation.asp :: überarbeitet
/**
* DHTML date validation script. Courtesy of SmartWebby.com (http://www.smartwebby.com/dhtml/)
*/
// Declaring valid date character, minimum year and maximum year
// String dtCh = ".";
// int minYear = 1900;
// int maxYear = 2099;
public static boolean isInteger(String str) {
for (int i = 0; i < str.length(); i++){
int num = -1;
// Check that current character is number.
char character = str.charAt(i);
try {
num = Integer.parseInt(character + "");
} catch (Exception e) {
return false;
}
if (((num < 0) || (num > 9))) {
return false;
}
}
// All characters are numbers.
return true;
}
public static String stripCharsInBag(String str, String bag) {
String returnString = "";
// Search through string's characters one by one.
// If character is not in bag, append to returnString.
for (int i = 0; i < str.length(); i++){
char character = str.charAt(i);
if (bag.indexOf(character) == -1) returnString += character;
}
return returnString;
}
public static int daysInFebruary (int year) {
// February has 29 days in any year evenly divisible by four,
// EXCEPT for centurial years which are not also divisible by 400.
return (((year % 4 == 0) && ( (!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28);
}
function DaysArray(n) {
for (var i = 1; i <= n; i++) {
this[i] = 31
if (i==4 || i==6 || i==9 || i==11) {this[i] = 30}
if (i==2) {this[i] = 29}
}
return this
}
public static boolean isDate(String dtStr) {
// configurations #start#
String dtCh = ".";
int minYear = 1900;
int maxYear = 2099;
// configurations #stop#
var daysInMonth = DaysArray(12);
int pos1 = dtStr.indexOf(dtCh);
int pos2 = dtStr.indexOf(dtCh, pos1 + 1);
String strDay = dtStr.substring(0, pos1);
String strMonth = dtStr.substring(pos1 + 1, pos2);
String strYear = dtStr.substring(pos2 + 1);
strYr = strYear;
if (strDay.charAt(0) == '0' && strDay.length() > 1) strDay=strDay.substring(1);
if (strMonth.charAt(0) == '0' && strMonth.length() > 1) strMonth=strMonth.substring(1);
for (int i = 1; i <= 3; i++) {
if (strYr.charAt(0) == '0' && strYr.length() > 1) strYr = strYr.substring(1);
}
int month = Integer.parseInt(strMonth);
int day = Integer.parseInt(strDay);
int year = Integer.parseInt(strYr);
if (pos1 == -1 || pos2 == -1) {
//alert("The date format should be : mm/dd/yyyy")
return false;
}
if (strMonth.length() < 1 || month < 1 || month > 12) {
//alert("Please enter a valid month")
return false;
}
if (
strDay.length() < 1 ||
day < 1 || day > 31 ||
(month == 2 && day > daysInFebruary(year)) ||
day > daysInMonth[month]
){
//alert("Please enter a valid day")
return false;
}
if (strYear.length() != 4 || year == 0 || year < minYear || year > maxYear){
//alert("Please enter a valid 4 digit year between "+minYear+" and "+maxYear)
return false;
}
if (dtStr.indexOf(dtCh, pos2 + 1) != -1 || isInteger(stripCharsInBag(dtStr, dtCh)) == false){
//alert("Please enter a valid date")
return false;
}
return true;
}Hatt jemand ne Idee, wie man diese Zeilen java'isieren kann?
Danke.
