Codebook

  import java.util.Random; import java.util.Scanner; public class gussingGame { int min = 1 ; int max = 16 ; Random rand = new Random(); int num = rand .nextInt( max - min + 1 )+ min ; int gues ; public int read() { Scanner s= new Scanner(System. in ); System. out .println( "Enter your guesing number between 1-16 : " ); gues =s.nextInt(); return gues ; } public void check() { int i= 0 ; while (i< 16 ) { if ( num == gues ) { System. out .println( "your gues is correct" ); break ; } else if ( num < gues ) { System. out .println( "The number is less than your gues " ); } else { System. out .println( "The number is greater than your gues " ); } read(); i++; } } public static void main (String

public class queue { int num [] ; int i ; int top ; int maxSize ; public queue( int length) { this . maxSize =length; top =- 1 ; num = new int [ maxSize ]; } public boolean isEmpty() { return top ==- 1 ; } public boolean isFull() { return top == maxSize - 1 ; } public void push( int newElm) { if (!isFull()) { num [++ top ] = newElm; } else { System. out .println( "array is full" ); } } public void pop() { for ( i = 0 ; i < top ; i ++) { num [ i ]= num [ i + 1 ]; } top --; } public void print() { if (isEmpty()) { System. out .println( "array is Empty" ); } else { System. out .println( "numbers are:" ); for ( i = 0 ; i <= top ; i ++) { System. out .pri

import java.util.Scanner; public class stack { int num [] ; int i ; int top ; int maxSize ; public stack( int length) { this . maxSize =length; top =- 1 ; num = new int [ maxSize ]; } public boolean isEmpty() { return top ==- 1 ; } public boolean isFull() { return top == maxSize - 1 ; } public void push( int newElm) { if (!isFull()) { num [++ top ] = newElm; } else { System. out .println( "array is full" ); } } public int pop() { return num [ top --]; } public void peek() { if (!isEmpty()) System. out .println( "top element is " + num [ top ]); else System. out .println( "array is Empty" ); } public void print() { if (isEmpty()) { System. out .println( "array is Empty" ); }

1. Install NodeJs first 2. Download the plugin nbm file  Here 3. Go to NetBeans Tools > Plugins > Downloaded menu and click on ‘Add Plugins…’. Select the           downloaded nbm file and click install. This will install the nodejs plugin.

1. apt-get update 2. apt-get install nodejs 3. apt-get install npm

1. Download the latest version of XAMPP  Here 2. Go to the directory of downloaded XAMPP     cd ~/Downloads     sudo su 3. Makes the XAMPP package as executable      sudo chmod +x xampp-linux-x64-5.6.8-0-installer.run 4. Install the XAMPP as shown bellow     sudo ./xampp-linux-x64-5.6.8-0-installer.run 5. Then you get XAMPP installation wizard. It's now next..next installation. For starting the XAMPP server sudo /opt/lampp/lampp start For stop the  XAMPP server sudo /opt/lampp/lampp stop

TCPServer.py from socket import * serverPort = 12029 print 'The server is ready to receive' c=1 while c==1:     serverSocket = socket(AF_INET, SOCK_STREAM)     serverSocket.bind(('', serverPort))     serverSocket.listen(1)     connectionSocket, addr = serverSocket.accept()     sentence = connectionSocket.recv(1024)     capitalizedSentence = sentence.upper()     connectionSocket.send(capitalizedSentence)   connectionSocket.close() TCPClient.py from socket import * serverName = 'localhost' serverPort = 12029 c=1 while c==1:     clientSocket = socket(AF_INET, SOCK_STREAM)     clientSocket.connect((serverName, serverPort))     sentence = raw_input('Input lowercase sentence:')     clientSocket.send(sentence)     modifiedSentence = clientSocket.recv(1024)     print 'From Server:', modifiedSentence      clientSocket.close()

TCPServer.py from socket import * serverPort = 12095 print 'The server is ready to receive' c=1 while c==1:     serverSocket = socket(AF_INET, SOCK_STREAM)     serverSocket.bind(('', serverPort))     serverSocket.listen(2)     connectionSocket1, addr1 = serverSocket.accept()     connectionSocket2, addr2 = serverSocket.accept()     sentence1 = connectionSocket1.recv(1024)     sentence2 = connectionSocket2.recv(1024)     capitalizedSentence1 = sentence1.upper()     capitalizedSentence2 = sentence2.upper()     connectionSocket2.send(capitalizedSentence1)     connectionSocket1.send(capitalizedSentence2) connectionSocket.close() TCPClient1.py from socket import * serverName = 'localhost' serverPort = 12095 c=1 while c==1:     clientSocket = socket(AF_INET, SOCK_STREAM)     clientSocket.connect((serverName, serverPort))     sentence = raw_input('Input lowercase sentence:')     clientSocket.send(sentence)     modified

UDPServer.py from socket import * serverPort = 12000 serverSocket = socket(AF_INET, SOCK_DGRAM) serverSocket.bind(('', serverPort)) print "The server is ready to receive" while True: message, clientAddress = serverSocket.recvfrom(2048) modifiedMessage = message.upper() serverSocket.sendto(modifiedMessage, clientAddress) UDPClient.py from socket import * serverName = 'localhost' serverPort = 12000 clientSocket = socket(AF_INET, SOCK_DGRAM) message = raw_input('Input lowercase sentence:') clientSocket.sendto(message,(serverName, serverPort)) modifiedMessage, serverAddress = clientSocket.recvfrom(2048) print modifiedMessage clientSocket.close()

TCPServer.py from socket import * serverPort = 12000 serverSocket = socket(AF_INET, SOCK_STREAM) serverSocket.bind(('', serverPort)) serverSocket.listen(1) print 'The server is ready to receive' while 1: connectionSocket, addr = serverSocket.accept() sentence = connectionSocket.recv(1024) capitalizedSentence = sentence.upper() connectionSocket.send(capitalizedSentence) connectionSocket.close() TCPClient.py from socket import * serverName = 'localhost' serverPort = 12000 clientSocket = socket(AF_INET, SOCK_STREAM) clientSocket.connect((serverName, serverPort)) sentence = raw_input('Input lowercase sentence:') clientSocket.send(sentence) modifiedSentence = clientSocket.recv(1024) print 'From Server:', modifiedSentence clientSocket.close()

Encapsulation Encapsulation is the mechanism that binds together code and data and keeps both safe from the outside interference and misuse. The technique is, making the fields in a class as private. if we declare a variable as private than anyone can't accessed the fields outside the class. The advantage of encapsulation is, the users can't break the code. so It gives maintainability and flexibility of code. Inheritance In OOP concepts, we define everything as objects(eg: dog,cat,human) . Each objects have behaviours and attributes. There is some relationships among objects with their behaviours and attributes. Inheritance is a process which one object acquires the properties of another object. sub classes acquire some attributes of  the super class. For a example animal is a super class of mammals and mammal is a super class of dog. In inheritance, we use the keywords extends and implements. extends  : when we inherit a class with a class this keyword can be use