Package getName() method in Java with Examples

Data Structures in Java

The numerous ways that data can be arranged, saved, and handled within a computer program are referred to as data structures in Java. These structures offer a methodical method for handling and managing data effectively, enabling useful operations like insertion, deletion, retrieval, and traversal. The article...

31 min read

Efficiently Compute Sums of Diagonals of a Matrix in Java

Efficiently computing the sums of the primary and secondary diagonals of a matrix involves leveraging index properties to minimize iterations. Instead of using nested loops to traverse the entire matrix, a single loop can directly access diagonal elements, improving performance and simplifying the code. This approach...

6 min read

Java Version Check macOS

Java is among the most accessed programming languages. Java is known for its tendency to run on multiple operating systems without requiring any modifications to the Java application. This post will aid one in verifying their Java version in macOS, understanding its importance, using multiple versions,...

4 min read

Cyclomatic Complexity in Java

Code management in Java is a concept that one may be familiar with. It deals with how to organize one's source code such that dealing with it during maintenance can be somewhat more straightforward. Apart from other time complexities, this cyclomatic complexity is computed on the...

5 min read

Mars Rover Problem in Java

The Mars Rover problem is a classic programming challenge that tests one's ability to design an algorithm to navigate a rover on a rectangular grid. The goal is to manoeuvre the rover based on a set of commands, avoiding obstacles and staying within the bounds of...

6 min read

Java Semaphore

In Java, we use semaphore in the thread synchronization. It is used to control access to a shared resource that uses a counter variable. Java also provides a Semaphore class that contains constructors and various methods to control access over the shared resource. We will discuss...

8 min read

Find Number of Island in Java

Finding number of island problem is a standard problem usually asked in top companies coding round interview. The problem is based on the graph theory. In graph theory, we find the number of connected components. In this problem, we have to find the same. So, in...

6 min read

Methods to Take Input in Java

In Java, there are various methods available to take input from the user. The choice of method depends on the type of input you want to receive. Here are some commonly used methods to take input in Java: Using Java Scanner class: The Scanner class is a versatile...

7 min read

Maximum Rectangular Area in a Histogram in Java

In this section, we will see how one can compute the maximum rectangular area in the histogram. What is maximum rectangular area in the histogram? The maximum rectangle that has to be created should be made of continuous bars. For the sake of simplicity, we will assume that...

10 min read

Which Class cannot be subclassed in Java

? Creating class hierarchies and extending existing classes through inheritance are basic concepts in Java programming. Not all classes, nevertheless, may be subclassed. Java has tools to limit inheritance for certain classes, one of which is the final keyword. In this section, we will examine the idea...

3 min read