Java helpers that will make your life pretty easy

JavaFacilities.md

Java Facilities

The collections of code snippets que will make your life pretty much easy!

Hash Builder

Make your life easy! 😃

/**
 * Created by fernandomartinez on 12/22/14.
 */
public class HashBuilder {
  public static Map build(Object ... keyValuePair) {
    Map<Object, Object> map = new HashMap<>();

    for (int i = 0; i < keyValuePair.length; i += 2) {
      if (( i + 1 ) < keyValuePair.length &&
          keyValuePair[i] != null &&
          keyValuePair[i + 1] != null) {

        map.put(keyValuePair[i], keyValuePair[i + 1]);
      } else {
        continue;
      }
    }

    return map;
  }
}

Usage

  Map map = HashBuilder.build(
          "user_id", id,
          "name", name,
          "email", email
      );

Easy, uh!?

Array Utils

Join

Join objects with separator like other languages

/**
 * Created by fernandomartinez on 12/23/14.
 */
public class ArrayUtils {
  public static String join(List objects, String separator) {
    if (objects != null && objects.size() > 0) {
      String result = objects.get(0).toString();
      for (int i = 1; i < objects.size(); ++i)
        result += separator + objects.get(i).toString();

      return result;
    } else {
      return "";
    }
  }
}

Usage

So simple!

String join = ArrayUtils.join(myCollection, ",");