Using Java Array Lists to find sum, size of the array list, the largest index entry, and print the array list order in reverse ...

However, there are collection classes in Java that act like a Java array but resize themselves automatically. Any class that extends the List interface expands dynamically. Java arrays do not expand ...

Do you need to know how to sort Java objects in a collection, array, or map? Here's how to use the Comparable and Comparator interfaces and avoid ClassCastExceptions.

This way we can print the pascal's triangle using 2D array correctly because it is often confused by multiple of 11 which is not a correct method and it will not support after 5 rows.

Remove duplicates with Java’s Stream API The fastest and most efficient way to remove items from a List in Java is to use the distinct method of the Stream API. The following code snippet starts with ...

As a type-safe program language, Java requires bounds checks of array accesses. Whenever an array element is accessed, a cmp (compare) instruction is executed to check whether the index value is ...

Final thoughts on Directory Navigation in Java Java provides a few ways to traverse a directory, depending on which version you are using.