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Java libraries that facilitate "stitching" together multiple multi-line strings

I am trying to stitch together multiple multi-line strings together to create the effect of several columns of text. Consider the three text blocks below:
Lorem ipsum dolor si
t amet, consectetur
adipiscing elit, sed
do eiusmod tempor in
cididunt ut labore e
t dolore magna aliqu
a.
Volutpat consequat m
auris nunc congue ni
si vitae. Sed risus
ultricies tristique
nulla aliquet enim t
ortor at auctor.
Urna porttitor rhonc
us dolor purus non.
Interdum varius sit
amet mattis vulputat
e enim nulla.
The block width is fixed at 20 characters. Ignore the wrapping of words.
What I want to do is stitch or append these separate multi-line strings together to produce the following:
Lorem ipsum dolor si Volutpat consequat m Urna porttitor rhonc
t amet, consectetur auris nunc congue ni us dolor purus non.
adipiscing elit, sed si vitae. Sed risus Interdum varius sit
do eiusmod tempor in ultricies tristique amet mattis vulputat
cididunt ut labore e nulla aliquet enim t e enim nulla.
t dolore magna aliqu ortor at auctor.
a.
In this case, the column spacing is 4 characters wide.
Is anyone aware of a Java library or utility that facilitates this? If not implemented in Java, is there anything that could do this, that could be invoked from Java code?

Check if one List<String> contains specific string from another list

I have a List<String> emails containing emails, of length n , and another List<String> keywords for containing keywords, of the same length. These lists should meet following condition: For each index i emails.get(i).contains(keywords.get(i))
So, if emails.get(0) == "quick brown fox", then keywords.get(0) == "fox".
if emails.get(5) == "foo bar", then keywords.get(5) == "foo".
How can I check (other than for loop) that each email contains a keyword?

First, it may be needed to check the size of both lists, then to compare corresponding list items, IntStream should be used:
public static boolean allKeywordsFound(List<String> emails, List<String> keywords) {
return emails.size() == keywords.size() &&
IntStream.range(0, emails.size())
.allMatch(i -> emails.get(i).contains(keywords.get(i)));
}

I see that others correctly answered your question but here's my take on the issue.
I presume you want the emails to be checked in order so here's a piece of code that uses Stream API instead of a for loop, I also put together the emails list and the result into a Map since you didn't specify whether you want the resulting boolean value to be for all the emails together or if you want a boolean value for each email containing the same-position keyword:
//mock data initialization
List<String> emails = new ArrayList<>();
List<String> keywords = new ArrayList<>();
//mock data initialization
emails.add("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua");
emails.add("eu lobortis elementum nibh tellus molestie nunc non blandit massa enim nec dui nunc mattis enim ut tellus elementum sagittis");
emails.add("Dignissim suspendisse in est ante in nibh mauris");
//mock data initialization
keywords.add("consectetur");
keywords.add("Foo");
keywords.add("Dignissim");
//initialized a list to contain whether a keyword exists for each email
List<Boolean> exists = new ArrayList<>();
//loaded it with boolean values (the exists List has the same order as the emails list)
emails.forEach(email -> exists.add(email
.contains(keywords
.get(emails
.indexOf(email)))));
//since I don't know what you wanna do with the result, I decided to just put them together in a Map
//with the email string as the key and the existence variable as a value
LinkedHashMap mapOfTruth = new LinkedHashMap();
emails.forEach(email -> mapOfTruth.put(email, exists.get(emails.indexOf(email))));
Output
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua = true
eu lobortis elementum nibh tellus molestie nunc non blandit massa enim nec dui nunc mattis enim ut tellus elementum sagittis = false
Dignissim suspendisse in est ante in nibh mauris = true

This code using Java streams/maps checks if each email contains their respective keyword.
boolean allEmailsContainKeyword(List<String> emails, List<String> keywords) {
return !emails.stream().map(email -> email.contains(keywords.get(emails.indexOf(email)))).collect(Collectors.toList()).contains(false);
}

How to split a string (with params) in Java

I have a string that alternates between text and chapter marks. I'd like to have it in a key-value-array where the key is the chapter name and the value is the chapter content. The text looks like this:
<chapter name="First chapter" />
Lorem ipsum dolor sit amet, consetetur sadipscing elitr.
<chapter name="Second chapter" />
Sed diam nonumy eirmod tempor invidunt ut labore et.
<chapter name="Third chapter" />
Dolore magna aliquyam erat, sed diam voluptua.
The resulting array is supposed to look like this:
[
{"First chapter", "Lorem ipsum dolor sit amet, consetetur sadipscing elitr."},
{"Second chapter", "Sed diam nonumy eirmod tempor invidunt ut labore et."},
{"Third chapter", "Dolore magna aliquyam erat, sed diam voluptua."}
]
How can I do this?

You can use regular expression to locate subject and content. Your case is very suitable for that.
The link below has a summary for regex in java.
http://www.vogella.com/tutorials/JavaRegularExpressions/article.html

As suggested by #devd with this posting, the solution to the above case is XPath. There is an example here.

How to match any word but ignore those that starts with multiple whitespaces?

What I am trying to achieve is to match all words in text, but ignore those words in line (before new line) that start with 4 whitespaces.
Example
Text file to find words:
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do
eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut
enim ad minim veniam, quis nostrud exercitation ullamco laboris
nisi ut aliquip ex ea commodo consequat.
This must NOT be matched. Because it has 4 whitespaces at the beginning.
Lorem ipsum dolor sit amet. Ut enim ad minim veniam.
So, the words in following line should be NOT considered to match pattern:
This must NOT be matched. Because it has 4 whitespaces at the beginning.
Code
Here is my regex and it can find all words:
\\b[A-Za-z]+\\b
I know that in Java's RegEx syntax there is except which is ^ symbol but I only know how to use it in more simple expressions.

Maybe following snippet could be a basis for what you want to achieve.
String[] lines = {"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do",
"eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut",
"enim ad minim veniam, quis nostrud exercitation ullamco laboris",
"nisi ut aliquip ex ea commodo consequat.",
"",
" This must NOT be matched. Because it has 4 whitespaces at the beginning.",
"",
"Lorem ipsum dolor sit amet. Ut enim ad minim veniam."};
for (String line : lines) {
if (!line.startsWith(" ")) {
String[] words = line.split("[\\p{IsPunctuation}\\p{IsWhite_Space}]+");
System.out.println("words = " + Arrays.toString(words));
}
}
output
words = [Lorem, ipsum, dolor, sit, amet, consectetur, adipiscing, elit, sed, do]
words = [eiusmod, tempor, incididunt, ut, labore, et, dolore, magna, aliqua, Ut]
words = [enim, ad, minim, veniam, quis, nostrud, exercitation, ullamco, laboris]
words = [nisi, ut, aliquip, ex, ea, commodo, consequat]
words = []
words = []
words = [Lorem, ipsum, dolor, sit, amet, Ut, enim, ad, minim, veniam]
PS: the regex has been borrowed from this answer

The following should do that
(?<!\s{4})\\b[A-Za-z]+\\b
It begins with a negative lookbehind so it won't match anything with \s{4} preceding it.

How can I parse a Java proberty file with PHP?

oI have a Java proberties file which looks more or less like this:
FD6AEA14B3581255C5D40451CDFF8168.hash=90AD759FF0B41ABD7260EF1044E75330
FD6AEA14B3581255C5D40451CDFF8168.path=Volumes/UA08154711/08154711/Lorem ipsum dolor sit amet, consetetur sadipscing/Lorem ipsum dolor sit amet, consetetur sadipscing/07 - Lorem ipsum dolor sit amet, consetetur sadipscing - Lorem ipsum dolor sit amet, consetetur sadipscing (Album Version).mp3
EA3F9134319E314BC85D59D16122800.fileName=04 - Lorem ipsum dolor sit amet, consetetur sadipscing (Album Version).mp3
EA3F9134319E314BC85D59D16122800.hash=88302129514633AAED4553F1B0CCB6B8
EA3F9134319E314BC85D59D16122800.path=Volumes/UA08154711/08154711/Lorem ipsum dolor sit amet, consetetur sadipscing/Lorem ipsum dolor sit amet, consetetur sadipscing/04 - Lorem ipsum dolor sit amet, consetetur sadipscing (Album Version).mp3
EAFB12EE4094D48A2B1BD367E5737C80.fileName=._02 - Lorem ipsum dolor sit amet, consetetur sadipscing (Explicit Version).mp3
EAFB12EE4094D48A2B1BD367E5737C80.hash=34FB1D1E3523334A89D03DE707C00968
EAFB12EE4094D48A2B1BD367E5737C80.path=Volumes/UA08154711/08154711/Lorem ipsum dolor sit amet, consetetur sadipscing/Lorem ipsum dolor sit amet, consetetur sadipscing/._02 - Lorem ipsum dolor sit amet, consetetur sadipscing (Explicit Version).mp3
fileSize=1024595340
Number=03173729
the files destination is files/03173729.meta
I want to parse the file with php so I can save the data in the mySQL database. The code:
$filepath = "files/03173729.meta";
$fileContents = file_get_contents("$filepath");
echo $fileContents;
$result = parse_properties($fileContents);
//Fetch the contents from the result array and add them to the database
function parse_properties($txtProperties) {
$result = array();
$lines = split("\n", $txtProperties);
$key = "";
$isWaitingOtherLine = false;
foreach ($lines as $i => $line) {
if (empty($line) || (!$isWaitingOtherLine && strpos($line, "#") === 0))
continue;
if (!$isWaitingOtherLine) {
$key = substr($line, 0, strpos($line, '='));
$value = substr($line, strpos($line, '=')+1, strlen($line));
}
else {
$value .= $line;
}
/* Check if ends with single '\' */
if (strrpos($value, "\\") === strlen($value)-strlen("\\")) {
$value = substr($value,0,strlen($value)-1)."\n";
$isWaitingOtherLine = true;
}
else {
$isWaitingOtherLine = false;
}
$result[$key] = $value;
unset($lines[$i]);
}
return $result;
}
But I do not know how to implement the file path into the code.

You can do like this:
<?php
$filepath = "[your path]";
$fileContents = file_get_contents("$filepath");
$result = parse_preperties($fileContents);
//Fetch the contents from the result array and add them to the database
function parse_properties($txtProperties) {
...
...
...
}
?>