Category: Java

This post will discuss how to concatenate integers to a String in Java.

This post will discuss how to print the string representation of an object in Java.

This post will discuss how to remove the last character from the end of a String in Java.

This post will discuss how to get the last n characters from a string in Java.

This post will discuss how to convert a hex string to an integer in Java.

This post will discuss how to capitalize the first letter of a String in Java.

In this post, we will compare two of the most popular Map implementations: HashMap and TreeMap. We will explore their differences in terms of implementation, order, null values, and performance, and help us decide which one to use for our specific needs.

This post will discuss the groupingBy() method provided by the Collectors class in Java. The groupingBy(classifier) returns a Collector implementing a “group by” operation on input elements, grouping elements according to a classification function, and returning the results in a map. Following are some examples demonstrating the usage of this function: 1. Split a list […]

This post will discuss how to compare the contents of two files to determine whether they are equal in Java.

This post will discuss how to check if a file exists in Java.

This post will discuss how to count occurrences of a given character in a string in Java.

This post will list the similarities and differences between HashSet and TreeSet implementation of the Set interface in Java.