CAPP is A Calculative application made on java. It helps to do different kind of calculation options.

This is a java web application for Java Multiple Choice Questions Exam.

Express.js is a popular web framework for building web applications and APIs using Node.js. It provides a robust set of features for creating server-side applications, including routing, middleware support, and template engines.

Queue is an abstract data structure, somewhat similar to Stacks. Unlike stacks, a queue is open at both its ends. One end is always used to insert data (enqueue) and the other is used to remove data (dequeue). Queue follows First-In-First-Out methodology, i.e., the data item stored first will be accessed first.

Hash Table is a data structure which stores data in an associative manner. In a hash table, data is stored in an array format, where each data value has its own unique index value. Access of data becomes very fast if we know the index of the desired data. Thus, it becomes a data structure in which insertion and search operations are very fast ir…

Primitive Integer data types - includes byte, short, int, long. The byte data type is an 8-bit signed two's complement integer. The short data type is a 16-bit signed two's complement integer. the int data type is a 32-bit signed two's complement integer. The long data type is a 64-bit two's complement integer.

A for loop is a repetition control structure that allows you to efficiently write a loop that needs to be executed a specific number of times

Scanner is a class in java.util package used for obtaining the input of the primitive types like int, double, etc. and strings. It is the easiest way to read input in a Java program, though not very efficient if you want an input method for scenarios where time is a constraint like in competitive programming.

The Boolean data type is used to store only two possible values: true and false. This data type is used for simple flags that track true/false conditions.

A function is a block of code which only runs when it is called. You can pass data, known as parameters, into a function. A function can return data as a result.

In Kotlin, lists are a type of collection that allows you to store and manipulate a sequence of elements. Kotlin provides a variety of language constructs and standard library functions for handling lists.

A java package is a group of similar types of classes, interfaces and sub-packages. Package in java can be categorized in two form, built-in package and user-defined package.

In Android Jetpack Compose, the Column layout composable is used to arrange multiple composables vertically.

The Data Binding Library is a support library that allows you to bind UI components in your layouts to data sources in your app using a declarative format rather than programmatically.

In Dagger 2, the Application class is often used to define and provide shared components across the application. The Application class acts as a global context for your Android application and is created before any other component or object in your app.

The ViewModelFactory is a class in the Android Architecture Components that is used to create instances of ViewModel classes. In Android, a ViewModel is used to store and manage data that is used in an activity or fragment, and survives configuration changes, such as screen rotation.

WorkManager is the recommended solution for persistent work. Work is persistent when it remains scheduled through app restarts and system reboots. Because most background processing is best accomplished through persistent work, WorkManager is the primary recommended API for background processing.

Every notification should respond to a tap, usually to open an activity in your app that corresponds to the notification. To do so, you must specify a content intent defined with a PendingIntent object and pass it to setContentIntent().

Dagger 2 is one of dependency injection framework in Android that can provide us dependencies in a particular class. It’s probably the most used dependency injection framework in Android development. Singleton annotation can be put in other component and as long as the component alive the singleton annotated object will alive as well.

Dependency injection (DI) is a technique widely used in programming and well suited to Android development. By following the principles of DI, you lay the groundwork for good app architecture. Implementing dependency injection provides you with the following advantages: 1. Reusability of code 2. Ease of refactoring 3. Ease of testing