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Short Answer An applet is a small program that runs inside a web browser. It’s like a tiny app you can use without having to install it on your computer. Applets are written in Java, so they can run on any type of computer or device that has Java. They’re used for simple games, calculators, … Read more

Short Answer Multithreading in Java is like having many workers in a shop. Each worker does a different job at the same time. This way, the shop can do many things at once, like serving more customers quickly. A thread is like each worker. Java lets your program have many threads, or “workers,” so it … Read more

Short Answer I/O stands for Input/Output, which is how computers interact with the world. Input is when you give data to a computer, like typing on a keyboard or clicking a mouse. Output is when the computer gives data back, like showing words on a screen or playing sounds. In Java, I/O, or Input/Output, is … Read more

Short Answer Exception handling in Java is a mechanism to handle runtime errors, ensuring graceful program execution and error recovery. Imagine you’re walking and suddenly see a hole. You can jump over it or walk around it instead of falling in. In Java, exceptions are like these holes. They are problems that can happen while … Read more

Short Answer Inheritance in Java lets one class use the features of another class. It’s like getting traits from your parents. This helps in reusing code and making a group of related classes easier to handle. Java supports different types of inheritance, mainly single, multilevel, and hierarchical. For example, imagine a basic Animal class that … Read more

Short Explanation Abstract classes and interfaces in Java are ways to achieve abstraction, but they work differently. An abstract class is a partial blueprint that can have both complete and incomplete methods. You can’t make objects from it directly. It’s great for sharing code among closely related classes. An interface, on the other hand, is … Read more

Short Explanation In Java, an interface is a blueprint of a class that defines a set of abstract methods without specifying their implementation. It serves as a contract for classes that implement it, ensuring that they provide concrete implementations for all the methods defined in the interface. For example, if you have an interface called … Read more

Short Answer Abstract classes in Java serve as blueprints for other classes. They cannot be instantiated on their own but can contain abstract methods, which must be implemented by subclasses. They provide a way to define common behavior and enforce certain methods to be implemented by subclasses, promoting code reusability and maintainability. Detailed Answer Understanding … Read more

Short Answer Explanation In Java, an array is a way to store many values of the same type together. This makes it easy to manage lots of data. For example, if you want to keep track of the scores of 20 students, you can put them all in one array instead of making 20 separate … Read more