complete tutorials on core java in java

: During the class load time. In Java, static variables are loaded into memory when the class that contains them is loaded by the Java Virtual Machine (JVM). The class loading process occurs when the class is first referenced in the program, either by creating an instance of the class, accessing a static member, or … Read more

They can be applied to variables, methods and even a block of code, static methods and variables are not associated with any instance of class. In Core Java, the static modifier can be used in various contexts. Here are some places where you can use the static modifier: Static Variables (Class Variables): You can use … Read more

Abstract class must be subclassed and final class cannot be subclassed. In Java, an abstract class and a final class are two different concepts with distinct characteristics: Abstract Class: An abstract class is a class that cannot be instantiated on its own. It may contain both abstract (methods without a body) and concrete (methods with … Read more

If one or more methods of the class are abstract. If class inherits one or more abstract methods from the parent abstract class and no implementation is provided for that method If class implements an interface and provides no implementation for those methods. In Java, a class is marked as abstract when it contains one … Read more

No abstract class cannot be instantiated i.e you cannot create a new object of this class No, an abstract class cannot be instantiated in Java. An abstract class is a class that is declared with the abstract keyword. It may have abstract methods (methods without a body) that must be implemented by its subclasses. Abstract … Read more