Category: Java

This post will discuss how to calculate the sum of all elements in a List in Java.

This post will discuss how to convert a List of Lists to a two-dimensional primitive or Object array in Java.

This post will discuss how to get the first n characters of a String in Java, where n is a non-negative integer.

This post will discuss how to compare two lists for equality in Java, ignoring the order. The List may be a List of primitive types or a List of Objects. Two lists are defined to be equal if they contain exactly the same elements in equal quantity each, in any order.

This post will discuss how to check if two lists are equal in Java. The List may be a List of primitive types or a List of Objects. Two lists are defined to be equal if they contain exactly the same elements, in the same order.

This post will discuss how to calculate log base 2 for an integer in Java.

This post will calculate the similarity between two Strings in Java.

This post will discuss how to create a Stream of Characters from a primitive character array in Java.

This post will discuss how to format a string with leading zeros in Java.

Varargs in Java allow you to pass the final argument to a method as an array or as a sequence of arguments, by placing three periods after the final parameter’s type. This post will list out a few examples of varargs in Java.

This post will discuss how to add timeout to the Runtime.exec() process in Java.

This post will discuss how to clone a 2D array (matrix) in Java using Stream API, whose column size may or may not be fixed.