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Semester 3 subjects new syllabus.
MUMBAI UNIVERSITY
🖥🖱
📌1.Principles of Operating Systems
📌2.Linear Algebra
📌3.Data Structures
📌4.Advanced Database Concepts
📌5.Java based Application Development
📌6.Web Technologies
📌7.Green Technologies

Semester 4 subjects NEW syllabus
MUMBAI UNIVERSITY
📌📌📌🖥📝
1.Theory of Computation
2.Computer Networks
3.Software Engineering
4.IoT Technologies
5.Android Application Development
6.Advanced Application Development
7.Management & Entrepreneurship

Waterfall model in Software engineering

Prototyping model (software engineering)

Agile model
Software engineering

Spiral model
Software engineering

RAD model
Software engineering

incremental model
software engineering

Waterfall model
Software engineering (unit 1)

The waterfall model is a linear, sequential approach to the software development lifecycle (SDLC) that is popular in software engineering and product development. The waterfall model uses a logical progression of SDLC steps for a project, similar to the direction water flows over the edge of a cliff.

you can group the activities of the waterfall approach into five stages: planning(requirement), design, implementation(coding), verification(testing), and maintenance.

Incremental model
Software engineering (unit 1)

Incremental Model is a process of software development where requirements are broken down into multiple standalone modules of software development cycle. Incremental development is done in steps from analysis design, implementation, testing/verification, maintenance.

The incremental model provides operational and visible product at the early increments. As components of the whole product are incorporated one by one, bug detection becomes easier.

Concurrent model
Software engineering (unit 1)

Concurrent models are those models within which the various activities of software development happen at the same time, for faster development and a better outcome. The concurrent model is also referred to as a parallel working model.

This model is applicable to all types of software development processes. It is easy for understanding and use.

Android applications development (unit1)
Kotlin

Kotlin is a cross-platform, statically typed, general-purpose programming language with type inference. Kotlin is designed to interoperate fully with Java, and the JVM version of Kotlin's standard library depends on the Java Class Library, but type inference allows its syntax.

Paradigm Multi-paradigm: object-oriented, functional, imperative, block structured, declarative, generic, reflective, concurrent

Designed by JetBrains

Developer JetBrains

Android applications development
(unit 1)
Kotlin

Kotlin Type Conversion

Type conversion (also called as Type casting) refers to changing the entity of one data type variable into another data type. As we know Java supports implicit type conversion from smaller to larger data types. An integer value can be assigned to the long data type. 

But, Kotlin does not support implicit type conversion. An integer value can not be assigned to the long data type.  

In Kotlin, the helper function can be used to explicitly convert one data type to another data type. 

Example: 

var myNumber = 100 var myLongNumber: Long = myNumber.toLong()
// compiles successfully

The following helper function can be used to convert one data type into another:  

toByte() 
toShort() 
toInt() 
toLong() 
toFLoat() 
toDouble() 
toChar() 

Note: There is No helper function available to convert into boolean type.

Android applications development
(Unit 1)
Kotlin

Packages

A package is a group of related classes, functions, sub-packages, and so on.
To import a package in Kotlin, we use the import keyword, followed by the name of the package that needs to be imported.
Syntax.
import package-name