The code examples

How to generate word document with apache poi

July 26, 2018November 4, 2019 - by Tirex - 3 Comments.

Today we will continue the topic of generating office documents from the template. To generate a docx document, we use the apache poi library.

java / Maven

Checkstyle configuration in maven

March 9, 2018March 10, 2019 - by Tirex - 5 Comments.

What most annoying programmers besides reading someone else’s code? That’s right, formatting! In a large team it is difficult to impart to everyone the same requirements for the style of …

Maven

Set java compiler version in pom

January 28, 2018 - by Tirex - Leave a Comment

Suppose you write a project that must have mandatory support for java 1.6 and higher, but you only have java 9 installed and also want the compiled classes to be …

java

Writing forEach with java 8 lambda

December 28, 2017December 28, 2017 - by Tirex - Leave a Comment

Let’s take a simple example. It’s easier, probably, and can not be – create a list of numbers and display it on the screen through the simplest cycle:

List <Integer> numbers = Arrays.asList (1, 2, 3, 4, 5, 6);

for (int number: numbers) {
	System.out.println (number);
}

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List <Integer> numbers = Arrays.asList (1, 2, 3, 4, 5, 6);

for (int number: numbers) {

System.out.println (number);

}

java

How to create jxls template

November 8, 2017September 22, 2018 - by Tirex - 1 Comment

What is a jxls template?

Maven

Get maven project version from the terminal

October 26, 2017November 4, 2019 - by Tirex - 1 Comment

Very often, when working on projects, you need to get the version of the pom.xml application from the command line. Here’s how you can do it:

Maven

Retrieve app version from maven pom.xml in java

October 26, 2017January 2, 2021 - by Tirex - 2 Comments.

Today we will discuss working with pom.xml. Suppose you have a web application and you want to print its current version in some part of the page. Of course, you …

java

How to generate a MS Word document (docx) from Java

October 17, 2017May 10, 2021 - by Tirex - 3 Comments.

In today’s article, we’ll look at generating a document based on the docx document template. This is a very common task in business applications where you service needs to provide …

java

How output single value in Excel template using jxls

October 9, 2017September 3, 2018 - by Tirex - Leave a Comment

Let’s look at an example of output to template a single value with information. We can take an example from previous article and modify it a little.

java

How to convert java string array to string with delimiter

October 7, 2017February 10, 2018 - by Tirex - 2 Comments.

Using String.join method (from java 8)

String[] array = new String[] { "a", "b", "c" };
String joined2 = String.join(",", array);

1 2	String[] array = new String[] { "a", "b", "c" }; String joined2 = String.join(",", array);

Using simple for-loop expression

StringBuilder sb = new StringBuilder();
for (String n : name) { 
    if (sb.length() > 0) sb.append(',');
    sb.append("'").append(n).append("'");
}
return sb.toString();

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StringBuilder sb = new StringBuilder();

for (String n : name) {

if (sb.length() > 0) sb.append(',');

sb.append("'").append(n).append("'");

}

return sb.toString();