Related Topics JAVA Programming Question 12 Can you give an example of using the indexOf method in Java for finding the first occurrence of a substring in a String? Answer In Java, the indexOf() method is used to find the index of the first occurrence of a specified substring in a string. The method takes […]
Related Topics JAVA Programming Question 1 What is a String in Java and how is it different from a character array? Answer In Java, a string is an object that represents a sequence of characters. It is a built-in class in the Java standard library, and it provides many methods to manipulate strings. A string
Related Topics JAVA Programming Question 10 Can you explain the use of generic arrays in Java and how to create and access them? Answer In Java, it is not possible to create an array of a generic type directly. This is because Java’s implementation of generics, known as type erasure, removes the generic type information
Related Topics JAVA Programming Question 6 Can you explain the concept of type bounds in Java generics and how they can be used to restrict the types that can be used as type arguments? Answer In Java generics, type bounds are used to restrict the types that can be used as type arguments. A type
Related Topics JAVA Programming Question 1 What are generics in Java and why were they introduced in the language? Answer Generics in Java are a feature introduced in Java 5 that allow you to define classes, interfaces, and methods that can work with different types of objects while providing type safety at compile time. The
Related Topics JAVA Programming Question 24 Can you explain the use of the showDocument method in the AppletContext class in Java Applets and give an example of its usage? Answer The showDocument method is used to display a new web page in the user’s web browser. This method is part of the AppletContext interface, which
Related Topics JAVA Programming Question 20 Can you explain the use of the paint method in a Java Applet and give an example of its usage? Answer The paint() method is a lifecycle method in Java applets that is called by the applet’s event dispatch thread whenever the applet’s display area needs to be redrawn.
Related Topics JAVA Programming Question 15 What is a Java Applet and what is its purpose? Answer A Java applet is a small program that runs within a web browser. It is written in the Java programming language and compiled into a bytecode format that can be executed by the Java Virtual Machine (JVM). Applets
Related Topics JAVA Programming Question 11 How does the ObjectInputStream and ObjectOutputStream classes work in Java and what is their purpose? Answer The ObjectInputStream and ObjectOutputStream classes in Java are used for reading and writing objects to and from binary streams. These classes provide a convenient way to serialize and deserialize objects in a way
Related Topics JAVA Programing Question 6 Can you explain the use of the Reader and Writer classes in Java for reading and writing text data? Answer In Java, the Reader and Writer classes are used for reading and writing text data, respectively. These classes are part of the Java I/O API and are built on
