How to use OR Statement in Java

OR is a logical operator in Java that is mostly used in control statements such as if-else statements. It returns true if any one of the statements is true.

Different Ways to Call a Method in Java

With the class name or class object, you can call a method in Java to access the predefined or user-defined static and public methods.

How to Check if a Character is a Number in Java

To check if a character is a number in Java, use Java built-in isDigit() method of Character Class. It will return a boolean value true if the char is a digit.

How to Return a String in Java

To return a string in Java, use “System.out.println()” method simply or within a method, or create a method with “String” return type and add required string.

How to Read a Text File and Store it in an Array in Java

To read a text file and store it in an array, Java provides many methods such as Scanner, BufferedReader, and FileReader classes and the readAllLines() method.

How to Manage the Intersection of Java, Security and DevOps at a Low Complexity Cost

Erik Costlow, Senior Director of Product Management at Azul, talks about Java-centric vulnerabilities and the headache they have become for developers everywhere. He touches on the need for putting security back into DevOps and how developers can better navigate vulnerabilities that are taking up all of their efforts and keeping them from being able to […]

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What Is Spring Framework?

Guide about the spring framework in Java and using the MVC module to create a web application and Spring Security for security and authentication purposes.

How to End a Java Program

To end or terminate a program in Java, we use System.exit() method and a return statement. The most commonly used method is System.exit().

How to Convert double to int in Java

To convert double to int in Java, there are three different methods that can be used: Typecasting, Math.round(), and Double.intValue().

How to Compare chars in Java

To compare Character objects, use compare(), and to compare both primitive chars and Character objects, use equals() method and relational operators.

How to Call by Reference in Java

To Call by Reference in Java, pass an argument as a reference in actual parameters, which will be used to refer to the address of a variable.

How to Round Up in Java

To round up in Java, Math.ceil() and Math.round() methods are used. Math.ceil() returns a double type decimal while Math.round() returns an integer value.

How to Install Apache Tomcat 10 in RHEL 8

Apache Tomcat prioritizes the execution of Java web-based applications. In this tutorial, learn how to install Apache Tomcat 10 in RHEL 8.
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How to Install Apache Tomcat on Ubuntu 22.04

Apache Tomcat is a free and open-source Java Servlet container for Java code and applications. Learn how to install Apache Tomcat on Ubuntu 22.04 here.
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Create First Spring Boot Application

Practical guide on the steps to create a simple spring boot application and how to add more dependencies to create a more functional and web-based applications.

Top Programming Languages for 2022: Learn Python and More with These Training Bundles

Learn Python, Java, Web3, web automation, and Linux administration with these top programming training bundles.
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How to square a number in Java?

In Java, the square of a number can be found by multiplying the number by itself or by using the Java built-in library Math.pow().

How to print a 2d array in java

Java provides multiple ways to print a 2d array for example nested for-loop, for-each loop, Arrays.deepToString() method, etc.

How to multiply in Java

Java offers a couple of ways to perform multiplication such as the multiplication operator “*” and a built-in method multiplyExact()

How to return an array in java

In Java, you can return an array by using method. The return type of the method and the array type must be same.