A collection of helper/utility methods for everyday (and sometimes rare) tasks.

It is written in Java, tests are handled by Groovy and Spock framework and the build system is based on Gradle.

The only requirement is JDK 1.8. If you plan to build the project yourself, you need Gradle 2.5+.

Up-to-date API documentation is available at http://bahmanm.github.io/utils-java/

Euclidean operations in an n-dimensional space

A point in an n-dimensional space.

The operations on a point in an n-dimensional space.

• distance: double → double → double → double → double: computes the distance between two points (using lat and lon).

Combination of multiple lists as an iterator.

Example:

List<Integer> list1 = new ArrayList<>(); list1.add(0); list1.add(1);
List<Integer> list2 = new ArrayList<>(); list2.add(2); list2.add(4); list2.add(6);
ListCombinations<Integer> lc = new ListCombinations<>(list1, list2);
while (lc.hasNext()) {
  System.out.print("[");
  for (Integer i : lc.next())
    System.out.print(" " + i + " ");
  System.out.println("]");
}

// printed on STDOUT
[ 0  2 ]
[ 1  2 ]
[ 0  4 ]
[ 1  4 ]
[ 0  6 ]
[ 1  6 ]

'utils' is published to BinTray.

repositories {
  maven {
    url "http://jcenter.bintray.com"
  }
}

dependencies {
  compile group: 'com.bahmanm', name: 'utils', version: '0.6.0'
}

<repositories>
  <repository>
    <id>bintray</id>
    <name>bintray central</name>
    <url>http://jcenter.bintray.com</url>
  </repository>
</repositories>

<dependencies>
  <dependency>
    <groupId>com.bahmanm</groupId>
    <artifactId>utils</artifactId>
    <version>0.6.0</version>
  </dependency>
</dependencies>