LESS TALK, MORE CODE: June 2017

Wednesday

CSS table row coloring >> tr:nth-child get 2nd, 3rd, 6th and 7th children at once?

<html>

<head>

<style>

caption {

text-align: center;

}

tr:nth-child(4n+1):not(:first-child), tr:nth-child(4n) {

background: #EAEAEA;

}

tr:nth-child(4n-1), tr:nth-child(4n-2) {

background: #E7F2FC;

}

</style>

</head>

<caption><b><br>HEADER</b></caption>

<tr>

<td height="21"><b>column 1</b></td>

<td height="21"><b>column 2</b></td>

<td height="21"><b>column 3</b></td>

<td height="21"><b>column 4</b></td>

</tr>

<tr>

</tr>

<tr>

</tr>

<tr>

</tr>

<tr>

</tr>

<tr>

</tr>

<tr>

</tr>

</table>

</body>

</html>

Clearcase error: Checkout is currently disabled for element | An update must be performed on the element to enable a checkout.

BUG:
While i tried to checkout a folder, it failed with the following error:

Error adding the file D:\myview\myvob\parentdir\myfile.xls to source control.
Checkout is currently disabled for element D:\myview\myvob\parentdir.
An update appears to have been aborted or errors were encountered during an update. An update must be performed on the element to enable a checkout.

FIX:
Update your view from the root.

clearcase explorer >> your snapshot >> right click >> update view

Friday

Ant scp error: com.jcraft.jsch.JSchException: reject HostKey: 10.xx.xx.xx

BUG:
I got the following error in scp task when run ant.

my build file:

</fileset>

</scp>

ERROR:
com.jcraft.jsch.JSchException: reject HostKey: 10.xx.xx.xx

FIX:

Add trust attribute.

</fileset>

</scp>

Regex date format validation (11_digit_identification_number date_of_birth_with_following_format_dd.mm.yyyy)

import java.util.regex.Matcher;

import java.util.regex.Pattern;

public class Test {

public static void main( String args[] ) {

String line[] = {"96325587410 10.01.1980", "96325587410 8.4.1988",

"96325587410 31.12.2000", "96325587410 70.01.2000", "96325587410 1-01-1980", "216235456242334458 10.01.1980",

"21652334458 10.01.2980"};

String pattern = "\\A\\s*\\d{11}\\s*(0?[1-9]|[12][0-9]|3[01])\\.(0?[1-9]|1[012])\\.((19|20)\\d\\d)\\s*\\Z";

String parameters = "\\A\\s*(\\d{11})\\s*((0?[1-9]|[12][0-9]|3[01]).(0?[1-9]|1[012]).((19|20)\\d\\d))\\s*\\Z";

for(int i = 0; i< line.length ; i++) {

Pattern r = Pattern.compile(pattern);

Matcher m = r.matcher(line[i]);

System.out.println("KEYWORD: " + line[i]);

if (m.find( )) {

Pattern cno = Pattern.compile(parameters);

Matcher m1 = cno.matcher(line[i]);

if(m1.find( )) {

System.out.println("--> identityno: " + m1.group(1));

System.out.println("--> dateofbirth: " + m1.group(2) );

}

} else {

System.out.println("---> NO MATCH");

}

System.out.println("---------------------------------------");

}

OUTPUT:

KEYWORD: 96325587410 10.01.1980

--> identityno: 96325587410

--> dateofbirth: 10.01.1980

---------------------------------------------

KEYWORD: 96325587410 8.4.1988

--> identityno: 96325587410

--> dateofbirth: 8.4.1988

---------------------------------------------

KEYWORD: 96325587410 31.12.2000

--> identityno: 96325587410

--> dateofbirth: 31.12.2000

---------------------------------------------

KEYWORD: 96325587410 70.01.2000

---> NO MATCH

---------------------------------------------

KEYWORD: 96325587410 1-01-1980

---> NO MATCH

---------------------------------------------

KEYWORD: 216235456242334458 10.01.1980

---> NO MATCH

---------------------------------------------

KEYWORD: 21652334458 10.01.2980

---> NO MATCH

---------------------------------------------

Join ArrayList String elements into a single String with a separator

Download commons-lang3-3.0.1.jar.

https://mvnrepository.com/artifact/

org.apache.commons/commons-lang3/3.0.1

For maven:

<groupId>org.apache.commons</groupId>

<artifactId>commons-lang3</artifactId>

</dependency>

import java.util.ArrayList;

import java.util.List;

import org.apache.commons.lang3.StringUtils;

public class Test {

public static void main(String[] args) {

List<String> list = new ArrayList<String>();

list.add("less");

list.add("talk");

list.add("more");

list.add("code");

System.out.println(StringUtils.join(list, ", "));

}

OUTPUT:

less, talk, more, code