Java 11 Programming for Beginners 1.4: Running Hello World

This video tutorial guides viewers through writing and running a simple 'Hello World' program in Java. It covers setting up a source directory, creating a package, and writing the main method in IntelliJ. The tutorial also addresses troubleshooting Java version issues using Gradle and demonstrates running the program from the command line. Additionally, it showcases how to use Gradle to manage dependencies, specifically using the Commons Validator library for the Luhn algorithm. The session concludes with a recap and a preview of the next topic on interest calculation.

What is the purpose of the 'psvm' shortcut in IntelliJ?

• To generate the main method signature

• To create a new Java class

• To compile the Java program

• To print 'Hello World'

What issue was encountered when trying to run the 'Hello World' program?

• IDE not installed

• Incorrect Java version

• Syntax error in the code

• Missing main method

Why is it important to use the exact Java version when running a program?

• To enable debugging features

• To ensure compatibility with the code

• To improve program speed

• To reduce memory usage

What is the role of the Gradle Wrapper?

• To compile Java code

• To manage Java libraries

• To run Gradle from the command line

• To create Java packages

What is the purpose of the 'gradlew bootJar' command?

• To install Gradle

• To update Java version

• To create a JAR file for command line execution

• To compile Java code

Which library was used to demonstrate dependency management in Java?

• Google Guava

• JUnit

• Apache Commons IO

• Commons Validator

Where can you search for Java library dependencies?

• IntelliJ Marketplace

• MVN Repository

• Oracle Website

• Java Documentation