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Tv task

Create a class called TV Have below method in it. public void watch() { System.out.println("Watching TV"); } Save and Compile this class. Create another class called Viewer with main method. Inside main method, create an instance for TV

Jan 05, 2025 am 06:56 AM

Overview of Executor Service in Java

Executor and ExecutorService API is a crucial tool for managing and controlling thread execution. They are part of java.util.concurrent package. They simplifies the process of concurrent programming by abstracting the complexities of thread creation,

Jan 05, 2025 am 06:44 AM

Building Observability and Monitoring for Modern Applications with Actuator, Prometheus and Grafana

In today’s world of distributed systems and microservices, ensuring our application is observable and monitorable is just as important as building the core functionality. We’ve already set up critical features like a NGINX load balancer, a rate limit

Jan 05, 2025 am 06:15 AM

How to Convert a Java `java.util.Date` to a `java.sql.Date`?

Converting Java Date to SQL Date: A Comprehensive GuideWhen working with Java, there are times when you may encounter the need to convert a...

Jan 05, 2025 am 04:30 AM

JBang, the missing scripting tool of the Java ecosystem

The Java ecosystem has already two powerful project management tools, namely Maven and Gradle, yet it lacked a simple and powerful scripting tool. This is where JBang comes in. It is a minimalist but powerful Java, Kotlin and Groovy file launcher. In

Jan 05, 2025 am 04:01 AM

The Annual Question: Bugs Caused by Week-Based Year Formatting in Java

When dealing with week numbering issues across different regions or cultures, standardization challenges often arise. For instance, Christian traditions typically consider Sunday as the first day of the week. Programming languages also have their own

Jan 05, 2025 am 03:58 AM

What Causes a Spring NoSuchBeanDefinitionException and How Can I Resolve It?

What is a NoSuchBeanDefinitionException and how do I fix it?What is a NoSuchBeanDefinitionException?A NoSuchBeanDefinitionException is an...

Jan 05, 2025 am 03:45 AM

How to Safely Parse Doubles with Comma as Decimal Separator in Java?

How to Effectively Parse Double with Comma as Decimal SeparatorProblem:String values representing decimal numbers with commas as separators, like...

Jan 05, 2025 am 03:42 AM

How Can I Add a Blank Page to a Digitally Signed PDF Without Invalidating the Signature?

How to Append Blank Page to Electronically Signed PDF while Maintaining Signature ValidityIn the realm of digital document security, digitally...

Jan 05, 2025 am 03:30 AM

Why Isn't 'javac' Recognized in My Windows Command Prompt?

Correcting the "javac is not recognized" Error on WindowsProblem: Java programs fail to compile with the error "javac is not recognized as an...

Jan 05, 2025 am 03:26 AM

Non-primitive data type

Java programming language has two types of data types Primitive data types (predefined data types) Non-primitive data types In this section, we will understand the non-primitive data types, their uses and implementation in Java. Non-primitive dat

Jan 05, 2025 am 02:28 AM