Related Topics JAVA Programming Question 1 What is Java I/O and what is its purpose? Answer Java I/O (Input/Output) refers to the set of classes and methods in the Java programming language that allow you to read and write data to and from files, network sockets, and other sources. The purpose of Java I/O is […]
Related Topics JAVA Programming Question 33 Can you explain the use of the @Inherited annotation in Java and give an example of its usage? Answer In Java, the @Inherited annotation is used to indicate that an annotation should be automatically inherited by any subclass of a class to which the annotation has been applied. When
Related Topics JAVA Programming Question 27 How do you declare an annotation in Java and what is the syntax for annotation declaration? Answer To declare an annotation in Java, the @interface keyword is used. The syntax for declaring an annotation is as follows: import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; @Retention(RetentionPolicy.RUNTIME) public @interface MyAnnotation { String value(); }
Related Topics JAVA Programming Question 21 What is the difference between autoboxing and unboxing in Java? Answer Autoboxing and unboxing are two concepts related to the conversion between primitive types and their corresponding wrapper classes in Java. Autoboxing is the process by which a primitive type is automatically converted into its corresponding wrapper class object.
Related Topics JAVA Programming Question 15 Can you explain the concept of autoboxing in Java and give an example of autoboxing in Java? Answer Autoboxing in Java is a feature that allows automatic conversion of primitive types to their corresponding object types (known as “wrappers”) and vice versa. This feature is available starting from Java
Related Topics JAVA Programming Question 8 How do you compare two enumerations in Java and what is the syntax for comparison? Answer In Java, you can compare two enumerations using the == operator. Since enumerations are objects, using the == operator compares their references, not their values. Here’s an example: enum Season { WINTER, SPRING,
Related Topics JAVA Programming Question 1 What is an enumeration in Java and what is its purpose? Answer In Java, an enumeration (also called an “enum”) is a data type that represents a set of predefined constants. It is used to define a fixed set of values that a variable can take, rather than allowing
Related Topics JAVA Programming Question 11 Can you give an example of using the Executor framework in Java for multithreaded programming? Answer Sure! Here’s an example of using the Executor framework in Java for multithreaded programming: import java.util.concurrent.Executor; import java.util.concurrent.Executors; public class ExecutorExample { public static void main(String[] args) { // Create an Executor with
Related Topics JAVA Programming Question 8 What is the purpose of the wait and notify methods in Java for multithreaded programming and when are they used? Answer The wait() and notify() methods in Java are used for inter-thread communication, which allows threads to cooperate and synchronize with each other. The wait() method causes the current
Related Topics JAVA Programming Question 1 What is multithreaded programming in Java and what is its purpose? Answer Multithreaded programming in Java is a technique that allows multiple threads to execute concurrently within a single Java program. A thread is an independent path of execution within a program. With multithreaded programming, a single program can
