Showing posts with label Array and ArrayList. Show all posts
Showing posts with label Array and ArrayList. Show all posts

Arrays Class: Learn how to handle (copy, sort, search and manipulate) Arrays


One of the great advantages of programming in Java is that it provides us a tremendous amount of APIs. We mean, Java comes with many classes and methods ready to be used.

In this tutorial in our online and free Java course will learn to use the Arrays class and its main methods, ordering, comparing, look, put elements in arrays / vectors of utilities among other series.

Arrays in Methods: pass by value and pass by reference


We saw in our Java course that there is a section just for methods, and we are in another section of the course just to arrays.
There are two important things, and the interaction between them is also important.
However, there are some details that need to be clarified and commented that we'll see in this article.

Java Video Lesson about Arrays and Multidimensional Arrays

This video is from the New Boston project: http://thenewboston.org/ , made by Bucky Roberts.
We just find the best Java video lesson for your.

In this video tutorial, Buckey will teach us more about the Arrays and Multidimensional Arrays in Java.

Multidimensional Array or Matrix: Array of arrays


You saw in the last Java tutorial of our course that an array is a set of variables of the same type.

However, we could also declare a set of arrays. In this case, we would have a multidimensional array or multidimensional vector, also known as matrices.

The FOR loop for Arrays: the for each loop


Throughout you Java programmer career, you will use the common for control statement to iterate through all the elements of an Array.

If this is so important and used, it should have a shortcut or easier way to do this in Java, don't you think?
And yes, there is a simple way.
Not to mention that with conventional arrays and for loop, it is quite easy to roll up and make mistakes.

Learn a special way to use the loop and stop having problems: foreach loop

Arrays in Java: how to declare, use and access its elements


In this introductory article of Arrays of our online Progressive Java course, you will learn how to declare and use arrays, or vectors, in Java.

Learn, too, the important notation of brackets, [], which we use to treat the members of an Array, as well as access the elements through these brackets.

Battleship game in Java: How to program


How to make a Battleship game in Java. Commented and explained code in step-to-step for Java beginnersNow, that we already learned how to pass arrays (of any size) for methods, we can do something more useful. Let's do the famous game called naval battle, in text mode.

We use everything we have learned so far in our Java course: if else, while loop, loop, methods, random numbers, arrays, multidimensional arrays and creativity.