What is the difference between remove() and destroy() in JavaScript?
The difference between remove() and destroy() in JavaScript is that the remove() method removes the specified element from the document, while destroy() is not a standard JavaScript method and is referring to a custom method that could be used to destroy an element or an object.
Date:2023-02-21
How to execute a JAR file in Java?
1. Using the java command:
Syntax:
java -jar jar-file.jar
Example:
java -jar C:/MyProject/dist/MyProject.jar
2. Using the jar command:
Syntax:
jar -jar jar-file.jar
Example:
jar -jar C:/MyProject/dist/MyProject.jar
3. Double-click the JAR file
If double-clicking doesn't work, you can often run the JAR file from the command line.
Date:2023-02-21
How does Java manage memory for use?
Java manages memory for use by automatically allocating and deallocating memory by using a garbage collector. The garbage collector is a program which runs on the JVM and seeks out objects which have become unused and reclaims their memory for use by the program. It does this by marking objects for deletion, clearing them from memory, and compacting the remaining memory so it can be reused effectively.
Date:2023-02-21
What is the use of parameters in Java?
Parameters in Java are used to pass information to a method when the method is called. Parameters allow a method to take different arguments each time it is called and handle each call in different ways. Parameters can also be used to return data from a method to the caller, and they are a central element of many different features in the Java language such as constructors, overloading, and polymorphism.
Date:2023-02-21
How to register event handlers in JavaScript?
Event handlers can be registered in several ways in JavaScript. The most common way is to use the addEventListener() function.
The syntax for addEventListener is:
element.addEventListener("event_type", function(){
// code block that handles the event
});
For example, to add an event listener for a “click” event on a "button" element, you can use the following code:
let btn = document.querySelector("button");
btn.addEventListener("click", function(){
console.log("Button Clicked!");
});
Date:2023-02-20
Can JavaFX run at 60fps?
Yes, JavaFX can run at a frame rate of up to 60fps. JavaFX is a user interface graphics library that is optimized for high performance graphics, making it well-suited for games and other graphics-intensive applications.
Date:2023-02-20
How to unite multiple conditions in a stream filter in Java?
In order to unite multiple conditions in a stream filter in Java, you can use the Predicate.and() method. The Predicate.and() method takes two Predicate objects and returns a Predicate that represents a short-circuiting logical AND of the two other predicates.
For example, if you wanted to filter a list of Strings for those that are equal to “Test” and end with “ing”, you can use the following code:
List<String> list = List.of("Testing", "Test", "Noting");
Predicate<String> startsWithTest = s -> s.startsWith("Test");
Predicate<String> endsWithIng = s -> s.endsWith("ing");
List<String> result = list.stream()
.filter(Predicate.and(startsWithTest, endsWithIng))
.collect(Collectors.toList());
// result = ["Testing"]
Date:2023-02-19
What is shutdown hook in Java?
Shutdown hooks in Java are a special construct that allows running a piece of code when the JVM shuts down normally. A shutdown hook is basically a thread that is registered with the JVM. When the JVM shuts down, it will run each of the registered shutdown hooks in some unspecified order and then terminate the JVM.
Date:2023-02-18
Is it possible to make AI with Java?
Yes, it is possible to create artificial intelligence (AI) software using Java. Java is a popular programming language and has a number of libraries and frameworks that can be used to create AI applications, including machine learning, natural language processing and game development. Additionally, Java is platform-independent, meaning that AI applications created in Java can be deployed to any type of system.
Date:2023-02-18
Do WHILE loop in JavaScript?
// The below is an example of a Do While loop in JavaScript:
let i = 0;
do {
console.log(`Do While loop number: ${i}`);
i++;
}
while (i < 5);
Date:2023-02-17