MD - Mark Down
Adil - from MSRIT, blr - E&C - wathcing animies
Anurag - MSRIT - Computer science - Sketching
Ashish - MANIT Bhopal, MCA, - playing video games
Chetan - MCA - IP university, delhi - reading books and travelling
Gaurav - MCA - guru gobind singh delhi, playing cricket, and does web development
Gurpreet - MCA in thapar univerity patiyala, playing criket & volley ball
Kushal - MCA, Mulana Azad university, playing cricket and chess
Sumanth - MSRIT BLR, final year - playing criket, football
Manshu - MCA ip univerity delhi playing football
Mohit - Btech from srm univerity, playing cricket and watching TV's shows
Nischal - MCA, dheradhun univerity, playing piano, TT
ojasvi - MCA, NIT raipur, singing
Priya - Btech from manipal univerity, playing badminton & gardening
Pulkit - MCA from thaphar, patiala , plays foot ball and doodling
Rahul - BE in IT, from chadigargh university, watch disnep movies, play criket and kabaddi
Ritu - final sem of MCA, nit jameshdpur - keep herself healthy
Roshni - MCA, USICT, robotics, dancing and yoga
Sangita - MCA from nit raipur, developing web application, paiting and travelling
Satyaa - Btech srm university, computers, playing video games
Sneha - PES University, did inter on robotic project, dancing and swim
Sumedh - MCA nit kurukshektra, web development, reading and painting
Vibhanshu - jaipur, BIT college, ui ux development, playing piano
Yashika - MCA, USICT, reading and painting
Yuvraj - MCA, from kurukshektra, riding bike, travelling, webseries

Ojasvi and Vibhanshu are the batch POC.

BitBucket, Jira Access MS Teams (Good)

C - BCA Java -

Approach - Left to Right - You learn programming and then think to apply it - Right to Left - You know what are you trying to solve and learn the right programming language to solve

List Of Softwares

Jdk 11 - https://www.oracle.com/in/java/technologies/javase/jdk11-archive-downloads.html
Eclipse - https://www.eclipse.org/downloads/packages/
GitBash - https://git-scm.com/downloads
VS Code - https://code.visualstudio.com/download
Jenkins - https://www.jenkins.io/download/
Docker - https://www.docker.com/products/docker-desktop
Maven - https://maven.apache.org/download.cgi

Day 1

DevOps

Git for SCM
Introduction and Key Concepts
Setup Overview
Installing Git on a Mac via the Command Line
Git Configuration
Configuration Commands
Setup and Configuration
First Commit Commands
Working Locally
Gitting Historical
Removing Files
Moving Files
Ignoring Files
History and File Management Commands
Collaborating with Others -- Git Remotes and GitHub
Git Remote Commands
Going Remote

Programming paradim

Low Code
No Code

git repo styles

Mono Repo
Branching Stratergy
Git is a tool to checking and checkout the code
GitHub is a cloud storage mechanism

Git Commands

git config user.name "Harry" - this will be applicable only to the folder you are in

git config --global user.name "Harry" - this will be applicable to the user you have logged in

git config --system user.name "Harry" - this will be applicable to entire system

git config --global --edit

git log --oneline --decorate --graph

git clone https://github.com/adithnaveen/delete-gitworks-inters-2022.git

git branch naveen-works main

create a file and put some content -> save -> Esc :wq

git add .

git ci -m "created new file "

git push origin

Git command in class room

1017 git status
1018 git add Hello.html
1019 git status
1020 git commit -m "initial commit"
1021 git status
1022 clear
1023 git st
1024 git config --global alias.st status
1025 git st
1026 git config --global alias.ci commit
1027 git config --edit
1028 git config --global --edit
1029 git config --global --edit
1030 vi Hello.html
1031 git add Hello.html
1032 git ci -m "added head and body tags"
1033 git st
1034 vi Hello.html
1035 git st
1036 git add .
1037 git st
1038 git ci -m "added h2 tag"
1039 git st
1040 git logs
1041 git log
1042 git log --oneline
1043 git st
1044 clear
1045 git status
1046 git log --oneline
1047 git status
1048 git branch
1049 git br
1050 git br -a
1051 git branch pulkit-footer-branch
1052 git br -a
1053 code .
1054 clear
1055 git br
1056 git checkout pulkit-footer-branch
1057 git st
1058 git add .
1059 git ci -m "added footer code"
1060 git log --oneline
1061 git co main
1062 git add .
1063 git ci -m "added script tag"
1064 git co pulkit-footer-branch
1065 git co main
1066 clear
1067 git br
1068 man git checkout
1069 git checkout --help
1070 git co -b nischal-css-works main
1071 git br
1072 git add .
1073 git ci -m "added style tag"
1074 git co main
1075 git add .
1076 git ci -m "added h3 "
1077 git st
1078 git br
1079 ls -la
1080 clear
1081 ls
1082 pwd
1083 mkdir styles
1084 cd styles
1085 touch sample.css
1086 git br
1087 pwd
1088 cd ..
1089 git add .
1090 git ci -m "added styles folder"
1091 git br
1092 git merge pulkit-footer-branch
1093 git st
1094 git add .
1095 git ci -m "merged footer works"
1096 clear
1097 git br
1098 git co nischal-css-works
1099 git co main
1100 git merge nischal-css-works
1101 git log --oneline --decorate --graph
1102 cat .git/HEAD
1103 clear
1104 cat .git/HEAD
1105 git br
1106 git co nischal-css-works
1107 git branch --merged
1108 git branch --no-merged
1109 clear
1110 git br
11- 11 git co main
1112 clear
1113 git br
1114 git log --oneline
1115 git co -b new-html-dev acdc52f
1116 git br
1117 git add .
1118 git ci -m "added para"
1119 clear
1120 git br
1121 git branch --merged
1122 git co main
1123 git branch --merged
1124 git branch --no-merged
1125 git branch -d nischal-css-works
1126 git branch -d pulkit-footer-branch
1127 git log --oneline -5
1128 git log --oneline -6
1129 git log --oneline -7
1130 git log --oneline -3
1131 clear
1132 pwd
1133 git remote -v
1134 git remote add origin https://github.com/adithnaveen/delete-gitworks-inters-2022.git
1135 git remote -v
1136 git st
1137 git push origin main
1138 git branch -a
1139 git push origin new-html-dev
1140 clear
1141 git br
1142 git co -b naveen-works main
1143 git br
1144 ls
1145 vi Header.html
1146 git add .
1147 git ci -m "added header.html\n"
1148 git push origin naveen-works
1149 git br -a
1150 clear
1151 git pull
1152 git br -a
1153 git co sumant-branch
1154 git co sumanth-branch
1155 clear
1156 git br
1157 ls
1158 cat Hello.
1159 cat Hello.txt
1160 vi Hello.txt
1161 git add .
1162 git ci -m "updated sumanth file"
1163 git push origin sumant-branch
1164 git push origin sumanth-branch

in the class room

Classroom Works - mono repo (dont create branches)
Project
Assessment
TDD - Test Driven Development
BDD - Behavioural Driven Development
DDD - Domain Driven Development
MDD - Model Driven Development

Day 1 Quick Assignement (30 Mins )

Create 1 github repo
Add Collaborators 2-3
1 person shall create the main branch
from there all others will create a branch
you will code in respective branch (small code is enough)
Then merge your code to main branch
You should show the git graph to the class room
Have a .gitignore file

Question: Satyaa - when conflits occur ?

#Day 2

Tools and Packages

APPLICATION PACKAGING AND BUILD TOOLS (MAVEN/GRADLE)

Introduction Why Maven? Introduction to debugging Install Java(Latest) Install Eclipse(Latest) Configure Tomcat in eclipse Web projects and eclipse settings Maven Installation and Setup POM XML Building the project from commandline Plugins, Repositories, Maven lifecycle goals Create a Maven Project in Eclipse, Writing Unit Tests Building from the Command Line Skipping Tests Skipping tests in eclipse Dependency Management Build the project Create the Parent POM, Update the Child POMs, Build the multi module project, The Six Scopes

Project Management Tool
- Maven
- Gradle
- ivy
- sbt...

	class Hello {}

mvn validate

mvn install

mvn package

mvn clean package

Working on Maven
- IDE (Eclipse)
- Command line
  - mvn --version

mvn archetype:generate -DgroupId=com.naveen -DartifactId=java-works-testing1 -DarchetypeArtifactId=maven-archetype-quickstart -DarchetypeVersion=1.4 -DinteractiveMode=false

cd java-works-testing

mvn install

java -cp ./target/java-works-testing-1.0-SNAPSHOT.jar com.naveen.App

mvn install -> it will compile -> test -> then only only install will take place if there are any error / test case failure then install is not completed you can ignore tests by below command

mvn -DskipTests=true install

-- to set path 

/Volumes/Kanchan/Softwares/maven/maven-3.8/bin
d:\somefolder\somefolder\maven\maven-3.8\bin
setting the path 
1. hit start -> type env -> look for environment variable -> user variable -> look for path -> add the copied text

log4j
slf4j
lockback
Create a maven project in bitbucket where the repository is create

Day 3

Tools and Packages - Jenkins

Introduction to Jenkins UI
Keep playing with your first Job
Redirect your first Job's output
Learn how to execute a bash script from Jenkins
Learn how to create a Jenkins list parameter with your script
Introduction to Pipeline
Introduction to Jenkinsfile
Install the Jenkins Pipeline Plugin Create your first Pipeline
Add multi-steps to your Pipeline
Retry
Timeouts Environment variables
Credentials
Post actions

Teams

Satyaa, Mohit, Anurag - Chethan - t1
Gaurav, Chethan - Adil - t2
Adil, Sumanth - Ayushi -t3
Ayushi, Yashika - Ritu - t4
Ritu, Ashish - Vibhanshu - t5
Vibhansu , Ojasvi - Sumedh - t6
Sumedh, Yuvraj - Gurpreet - t7
Gurpreet, Kushal - Nischal - t8
Nischal, Priya - Rahul - t9
Rahul, Sangita - Pulkit - t10
Sneha, Pulkit - Roshini - t11
Roshini, Manshu - Satyaa - t12

Scurm Master

Pull Request
Validate what is expected and delivery
Do a dry run for the team
zip
rar
jar
war

$PROJECT_NAME - Build # $BUILD_NUMBER - $BUILD_STATUS:

Check console output at $BUILD_URL to view the results.

pipeline {
    agent any

    stages {
        stage('build') {
            steps {
                echo 'i can do some building here '
            }
        }
        stage('test') {
            steps {
                echo 'test stage goes here '
            }
        }
        stage('deployment') {
            steps {
                echo 'deployment stage '
            }
        }

    }
}

create maven project in the branch called "maven-jenkins-works"

in the source main write a method

 	public class Hello {
 		public String hi() { return "Sapient";}
 	}

Write a test case to assert "Sapient" with "Sapient"
Create a Jenkinsfile in the server and build the application
install blue ocean

Day 4

working with junit
junit with jenkins
what is this all about assertxxxx
why/ when are we using pipeline and parameters
where are we using jenkins in realtime
why there is versioning in jenkins file

create a runnable jar

	write a program to say hi to user 

// development will come later 
	public String sayHi(String name) {
		return "Hi " + name; 
	}

// first test 
	public void testSayHi() {
		String name ="Adil"; 
		String expectedReturn = "Hi " + name; 
		assertEqulas(expectedReturn , sayHi(name));
	}

SDET -> Software Developer Enginer & Tester

in our class we had used junit -> 4.12

in adil pom.xml ther jutni is 3.8.x

  class MyTestCase extends Testcase  {

  }

Core Java, Java Introduction

Java Basics
Classes
Abstract Classes
Mutable Immtable classess
Interfaces
Compilers - Javac
JRE/JDK
Constructors, default ,paremetric
Methods
Packaging
Encapsulation - with Access Specifiers
Abstraction
Inheritence
- is-a - Car is a vehicle, human is a animal - verticle inheritance
- has-a - car has a streeing, human has a eye - horizontal

	class Employee {
		private int empId;
		private Name name; 
		private double epmSal;
	}

	class Customer {
		private int custId; 
		private double custIncome; 
		private Name name;
	}
	class Student {
		private int sId; 
		private Name name; 
	}

	class Name {
		private String firstName; 
		private String lastName; 
		private String middleName; 

	}

Polymorphism
static (block, variable, method )
c program
native programming language
in Windows it works only in windows - .exe file
in mac it works only in mac - a.out
there are different set of libraries / implementation for diff operating system
1972 - Dennis Ritches wrote C programming - Unix
C language is very fast
in 1992 - Games Gostling - OAK - Semiconductor devices (unfortunately failed)
1993 - java C++ (bjarne Strustrap)

	#define main mymain
	int * function () {}
	
	void mymain(int *p, char * args) { -> the main function will always return to underlying OS 
		printf("Hi"); 
	}

Java

Platform Independent
Threads
Collections
Excpetion
OOPS

	public class Hello  {
		public static void main(String [] args) {
			System.out.println("Hello"); 
		}
	}

	scanf("%d", &n);   -> hi("hello", "peter"); 
	#include <iostream>
	cin >> n;

destructor

	-  in C

	main() {
		int *ptr; 
		ptr = int * malloc(sizeof(int)* 44); 

		.. 
		free(ptr); 
	}

	- in C++ 
	class Employee {
		Employee() {}
		~Employee() {}
	};

in C we call it as function
- will always return value
in Java we call it as method
- methods are inside the class
- may, may not return value when needed it can return more than 1 value

conventions

All variables shall be camel case -> empId, empName, empSalary,storeDataBaseFlag
all methods shall be in cambel case -> getEmployeeRecord(), setEmployeeRecord(), viewBalance()
all package names shall be in lower case -> com.sapeint, com.yourcompany
all constants in uppercase -> PI, COMPANY_NAME

Specifiers and modifiers

Specifiers
1. public
2. private - varibles or mehtods are only visible inside the class
3. protected
4. default(package)
Modifiers
1. static
2. abstract
3. synchronized

class vs object

class is a blue print
Object is instance of blue print

OO Behaviour -Java

Every class in java has a implicit super class called Object
Types of memory
- Heap Memory - expadable and shrinkable memory
- Mehtod Section - this memory section is "singleton" and will be associated with the methods - stack
- Static section - this is kept in static section and this is also singleton many times static variables are called as class level variables
- Local variable section - this section only resides in the memory till the enclsing bracket and and there is no garbage collection concept here

Project Statement - CLI

Trainer Module
1. Shall have profile
  1. Trainer Name, Qualification, number of years of exp, [technologies known], [companies trained],
  2. Register
    - Given the application is laoded on the system
    - When the trainer enter firstname, email, password, confirm password
    - And pressess '0' to save
    - Then save the details to the database
  3. Login
  4. Dashboard
  5. Forgot password
  6. Trainer Calendar
  7. Update personal profile
  8. ....
Toc Module
1. Subject, Pre-requisites, Duration, course oucome, [line item [ sub-line-itme ]] - is done by trainer / SME
2. Type of program (Technical, Domain , Softskills, Behavioural... )
Employee Module - calendar,Trainers details, TOC, class room
1. class room name
2. class room trainer
3. Trainer feedback
4. Class Room

Functional Techno
NFR - Non Functional Requirement
- The system should always exit gracefully
- The system should respond in stipulated time
- The system shall not have the failover min promise uptime 99.99
BDD - Given When Then And But

Day 5

EXCEPTION HANDLING

Using Efficient Exception Handling
Resource Clean up Rules and Finally.
Custom Exception Hierarchy
Exception Wrapper
Exception Loggings
partial deligation

Mutable Immtable classess

	public class Device {
		private int dId; 
		private String dName; 

		Device() {}
		public void setDId(int dId) {
			this.dId = dId;
		}
		.. getter 
		public void setdName(String dName) {
			this.dName = dName;
		}
		.. getter 
	}

	Devide d = new Device();
	d.setDId(101); 
	d.setDName("Laptop"); 
	System.out.println(d); 
	
	d.setDId(102); 
	d.setDName("Key Board"); 
	System.out.println(d); 
	
	--

	public class Device {
		private int dId; 
		private String dName; 

		Device(int dId, String dName) {
			this.dId = dId; 
			this.dName = dName; 
		}
	 
		.. getter 
		.. getter 
	}

	Devide d = new Device(101, "Laptop");
	 
	System.out.println(d); 
	
 
	System.out.println(d);

Abstract method
- If you dont hav the implementation then mark the class with ;, and method shall have abstract as access modifier
- if a class has atleast 1 abstract method then the class should be marked as abstract
- if the class is marked as abstract then you cannot create an object of the abstract class but you can hold the reference
- reference -> is a pointer to instance vs instance -> memory allocation is done
- the abstract can have implementation if needed
- In java Multiple inheritence is not allowed
Interfaces
- Interfaces are 100% abstract
- In interfaces you cannot have any concrete implementation
- In interfaces you cannot have variables -> final
- Minimum access specifier in interfaces is public
- Interfaces has nothing to with classes so nothing to do with Object
- A class can implement an interface/s
- An interface can extends interface / s
- An interface cannot extend or implement the class
comprable

	Emp
		empId (asc/desc)
		empName
		empSal

	- Sneha - Nischal  -> 1, 0, -1

EXCEPTION HANDLING

try - catch
try - (try - (try - (try - (try - catch) catch) catch) catch) - catch
try (open the file / db connection ) - catch (handle the case ) - finally 100% (close)
try - finally
throw - is at statement level
throws - is at method level
NameTooShortException
- Surround It With try-catch
- throws

Need to complete the user stories
Create Bean classes for the project

Day 6

-- Core Java -> GENERICS

IO
- Reader / Writer Classess - .txt
- InputStream / OutputStream Classess - non text class (.mp4, .docx, .jpg...) -> .ser
- Scanner
Generics basics and implementation
How to Submit in Assessment

git clone https://tools.publicis.sapient.com/bitbucket/scm/batch/testing-assessment.git

git checkout main

git checkout -b navks-naveen main

CODE

git add .

git commit -m "completed assessment"

git push origin navks-naveen
How to write code for Project

	scanf("%d", &i); 

	cin >> i;

List of Topics For Tech Connect:

5g Edge Computing
TRIE Algorithm
Memory Managment in C, C++, Java
Need of Cloud Native Application in Today's world
Data Structures and Best Practices
Diff between SQL / NoSQL
A AA AAA Compliance
OSWAP
Open API 3.0
Library V/S Framework (React vs angular)
AWS And its application
Virtualization / Hypervisor
Generation Of Network
BlockChain
Containarization and Orchestraction
RPA
NFT

Generics
1.5 jdk
(Employee, TeamLeader, Project Manager, CEO, COO, LND, Director ) -> Person

class MyArray{ Object [] emp; }

Day 7

Generics basics and implementation

T [] - 1,2,3,4,5,6 - and find the average T [] - 1.4,2.6,3.3,4.1,5.8,65.5 - and find the average T [] - "Harish", "sumedh", "Vibhanshu".... T [] - new Emp("Harish"), new Emp("Sumedh"), new Emp("Vibhanshu"),

1,2 = 1.5 -> float or double

sorting min / max
10,2,3,4,5,6

[0] = 2 [1] = 10 [2] = 3

to pass generic object
Gen<?> genObject;
Gen genObject
Gen genEmp;
Gen genInteger;
Gen<? extends Number> getNumberType;

COLLECTIONS

Collection Interface
Iterator Interface
Set Interface
List Interface
Map Interface
List Iterator Interface
Sorted Set Interface
Sorted Map Interface
Unmodifiable Collection
Synchronized Wrappers
Thread Safety
Collections Utility Classes add more topics to cover Collection framework in depth

	int arr[]= new int[4]; 
	arr[0] = 10; 
	arr[1] = 20; 
	arr[2] = 30; 
	arr[3] = 40; 

	int arr1[] = new int[10]; 
	// copy all the elements of arr -> arr1
	arr[4] = 50; 
	// rename arr1 -> arr

Queue
Set
- HashSet - store first strategy
- TreeSet - in sorted order - retrive first strategy

-- before overriding hashcode / equals Laptop [laptopId=102, laptopName=Dell -Yoga, laptopPrice=2200.0], Stored @ 1705929636 Laptop [laptopId=102, laptopName=Dell -Yoga, laptopPrice=2200.0], Stored @ 1297685781 Laptop [laptopId=101, laptopName=Apple MacBookPro, laptopPrice=2000.0], Stored @ 511833308

after overriding hashcode Laptop [laptopId=101, laptopName=Apple MacBookPro, laptopPrice=2000.0], Stored @ 65 Laptop [laptopId=102, laptopName=Dell -Yoga, laptopPrice=2200.0], Stored @ 68 Laptop [laptopId=102, laptopName=Dell -Yoga, laptopPrice=2200.0], Stored @ 68
after overriding hashcode / equals Laptop [laptopId=101, laptopName=Apple MacBookPro, laptopPrice=2000.0], Stored @ 65 Laptop [laptopId=102, laptopName=Dell -Yoga, laptopPrice=2200.0], Stored @ 68
OLTP - Online Transaction Processing
OLAP - Online Analytical Processing - Informatica, Tableu, BI Report, PowerBI etc...
Map

- <K, V> -> Map<String, Account>, Map<String, Integer>, Map<String, List<String>>

Day 8 - 28-Jan-2022

MULTI THREADING AND PARALLEL COMPUTE

Concurrency API For java
Executors Framework
Lambda and threads
Futures and Callable , Completable

Intrim Demo - Deliverables

create a CLI application which shall have the complete application (TMS) running with the DBMS
Expose to have test driven development approach
Write unit test cases for the code written coverage should be min 60% - SonarQube
The application shall have error handling mechanism (should use explicit errors)
Application should be deployed with CI/CD - Jenkins
application building should be done using Maven
Java doc to be generated
1. // single line
2. /* multi line */
3. /** java doc */
4. /Applications/Eclipse.app/Contents/Eclipse/plugins/org.eclipse.justj.openjdk.hotspot.jre.full.macosx.x86_64_15.0.2.v20210201-0955/jre/bin/javadoc
Plant UML
multithreading to be shown atleast 1 use case (with executor prefer) + syncronizers
Create a jar file and import
Use of loggers - slf4j (logback / log4j)

app
- src/main
  - com.impl
    - shall have only main
  - com.beans
    - shall have all beans also called as re-usable component
  - com.service
    - all validation code shall go here
  - com.controller
    - will talk to file / db
  - com.exception
    - create all you custom exception's here
  - com.util
    - accept number

	BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); 
	System.out.println("Enter Your Name" ); 
	String name = br.readLine();
	// start processing 


	class ReadUserData{
		static BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); 
	
		public static String getStringValue(String title) {
			System.out.println("Enter " + title); 
			return br.readLine();
		}

		public static Integer getStringValue(String title) throws InvalidNumberException{
			System.out.println("Enter " + title); 
			return Integer.parseInt(br.readLine());
		}
	}

	class Impl {
		void hi() {
			String userName = ReadUserData.getStringValue("Name");
		}
	}

- Map<String, String>
- Map<String , List<String>>
- Map<String, Map<String, List<String>>>

-- threads

300000000000 person invoking it -> 2nd person have to wait for 24 ms, 3rd person have to wait for 48ms
Aging - piling up, each person in the queue starts looking for opportunity

	main() {	- 5ms 
		hi(); 
	}
	hi(){ - 7ms 
		hello();
	}

	hello(){- 10 ms 
	.. 
		cya();
		... 
	}
	cya(){ - 2 ms 
		// some BL 
	}

2.4 ghz - 2400000000 * 4

synchrounous
Asynchronous
Reactive

Day 9

Teams

Satyaa, Mohit, Anurag - Chethan - t1 - will show intrim demo today
Gaurav, Chethan - Adil - t2 - bean classes are created
Adil, Sumanth - Ayushi -t3 - need to work nothing much to show
Ayushi, Yashika - Ritu - t4 - sent pull req, menu driven part is done, bean classes are completed
Ritu, Ashish - Vibhanshu - t5 - bean classes are done, reg, login is done, there are some changed, PR Raised
Vibhansu , Ojasvi - Sumedh - t6 - maven project is created, basic navigation functionality, need to create bean classes
Sumedh, Yuvraj - Gurpreet - t7 - there
Gurpreet, Kushal - Nischal - t8 - bean classes are created, login part
Nischal, Priya - Rahul - t9 - could not show much
Rahul, Sangita - Pulkit - t10 - created maven project, employee module added, completed main file, wokring on login module
Sneha, Pulkit - Roshini - t11 - its is still at conceptual leve
Roshini, Manshu - Satyaa - t12 - working on bean classes, and has exam's
Lambda
x -> x * x -> y -> y * y
(int x, int y) -> {return x +y ;}
any interface which has exactly 1 instance method then that interface is called as funcational interface

	interface Consumer <T> {
		void accept(T t);
	}

	interface Predicate<T> {
		boolean test(T t);
	}


	Consumer c = new Customer(){
		void accept(T t){
			// your implemenation goes here 
		}
	}


	Consumer  c = (t) -> {}

Day 10

STREAMS AND CONCURRENCY

Introduction on Streams
Map, List, Set
Filter
Sorted
Collect
for Each
reduce
- Parallel Computing using Streams.
- New String methods
- New File Methods
- HTTP Client in Java 11

-- with map trainer.ser target pom.xml .classpath project .settings .project trainer.txt src

-- without map ./trainer.ser ./target ./pom.xml ./.classpath ./project ./.settings ./.project ./trainer.txt ./src

-- Create a list of Trainers tId, tName, tSalary using stream display only tName in upper case

select * from emp;

select empname, salary from emp;

select empname, salary from emp where empsalary > 3000;

select empname, salary from emp where empsalary > 3000 and city = 'blr';

select city, count(*), sum(salary), min(salary), max(salary), avg(salary) from emp where empsalary > 3000 and city = 'blr' group by city;

TODO
Product
- name, qty, price

for the name get the sum of qty
Group by qty / price { 3=[Product [name=keyboard, qty=3, price=78.0]], 23=[Product [name=laptop, qty=23, price=1200.0]], 56=[Product [name=mouse, qty=56, price=9.0]], 10=[ Product [name=laptop, qty=10, price=1500.0], Product [name=mouse, qty=10, price=45.0], Product [name=adapter, qty=10, price=65.0] ] }
by any chance if there are repeated product then only unique to be stored

{65.0=[adapter], 9.0=[mouse], 1200.0=[laptop], 78.0=[keyboard], 45.0=[mouse], 1500.0=[laptop]}

by any chance if there are repeated product then only unique to be stored only qty

Day 11

Satyaa, Mohit, Anurag - Chethan - t1 - will show intrim demo today,
- not much progrees need to work on IO
Gaurav, Chethan - Adil - t2 - bean classes are created
- not much progress
Adil, Sumanth - Ayushi -t3 - need to work nothing much to show
- No Progress
Ayushi, Yashika - Ritu - t4 - sent pull req, menu driven part is done, bean classes are completed
- registration, employee registration is done
- code is not push still
- has raised the PR
Ritu, Ashish - Vibhanshu - t5 - bean classes are done, reg, login is done, there are some changed, PR Raised
- View profile employee and trainer
- registration is completed
- validation is pending
Vibhansu , Ojasvi - Sumedh - t6
- maven project is created, basic navigation functionality, need to create bean classes
- not much progress from yesterday - vibhanshu was off
Sumedh, Yuvraj - Gurpreet - t7 -
- new code PR is not raise still
Gurpreet, Kushal - Nischal - t8
- bean classes are created, login part
- working on login part
- have got some code errors and working
Nischal, Priya - Rahul - t9
- could not show much
- reg part is done
- working on login part
- some code problem to validate the data from the file
Rahul, Sangita - Pulkit - t10
- created maven project, employee module added, completed main file, wokring on login module
- working on refractoring
- working on employee login
- need to raise the PR
Sneha, Pulkit - Roshini - t11 - its is still at conceptual leve
- not present
Roshini, Manshu - Satyaa - t12
- working on bean classes, and has exam's
- not much progress due to exams
- has exams till 5th feb

topics

HTTP Client in Java 11
JDBC and ORM (Hibernate)
JDBC Architecture
Connection
Statement, PreparedStatement & CallableStatement
ResultSet
Difficulties in JDBC
Overview of ORM
Hibernate basics
Hibernate setup
CRUD operations

jdbc working

create database sapientdb;

use sapientdb;

create table employee( empid int primary key, empname varchar(30), empsal decimal(9,2), empemail varchar(50) );

show tables;

desc employee;

Statement -> only for sql statement PreapredStatement -> statement + batch updates CallableStatement -> preparedstatement + invokes functions / procedures

arrays starts from 0
positional paramener starts from 1
result set starts from -1

-- hibernate

	@Entity 
	class Employee{}
	Employee emp = new Employee(); - life span is only with in java

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

    <session-factory>

        <!-- Database connection settings -->
        <property name="connection.driver_class">com.mysql.cj.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost/navdb</property>
        <property name="connection.username">root</property>
        <property name="connection.password">kanchan@1</property>

        <!-- JDBC connection pool (use the built-in) -->
        <property name="connection.pool_size">2</property>

        <!-- SQL dialect --> 
        <property name="hibernate.dialect">org.hibernate.dialect.MySQL8Dialect</property>

        <!-- Enable Hibernate's current session context -->
        <property name="current_session_context_class">thread</property>

        <!-- Disable the second-level cache  -->
        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>

        <!-- Echo all executed SQL to stdout -->
        <property name="show_sql">true</property>

        <!-- Drop and re-create the database schema on startup -->
        <property name="hbm2ddl.auto">create</property>
     

     
    </session-factory>

</hibernate-configuration>

Day 12

Hibernate basics
Hibernate setup
CRUD operations
Association mapping
1:N, N:1, 1:1, N:M Querying
Inheritance
Criteria / HQL
confirugation
- hibernate.cfg.xml
for selecting the record in hibernate
- Criteria - POJO
- hql
- native (sql)

ayupant123 / sapient-inters-jan-2022

List Of Softwares

Day 1

Git command in class room

in the class room

Day 1 Quick Assignement (30 Mins )

Tools and Packages

Day 3

Tools and Packages - Jenkins

Teams

Day 4

Core Java, Java Introduction

Java

conventions

Specifiers and modifiers

class vs object

OO Behaviour -Java

Project Statement - CLI

Day 5

EXCEPTION HANDLING

Mutable Immtable classess

EXCEPTION HANDLING

Day 6

Day 7

COLLECTIONS

Day 8 - 28-Jan-2022

MULTI THREADING AND PARALLEL COMPUTE

Intrim Demo - Deliverables

Day 9

Teams

Day 10

Day 11

topics

jdbc working

Day 12

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