89. APRIORI ALGORITHM IN JAVA

import java.io.*;

import java.util.*;

public class Apriori {

    public static void main(String[] args) {

        AprioriCalculation ap = new AprioriCalculation();

        ap.aprioriProcess();

    }

}

class AprioriCalculation

{

88. ADDRESS TRANSLATION OF 80386 IN PROTECTED MODE IN JAVA

import java.util.*;

class addrxlation

{

                public static void main(String args[])

                {

                                Scanner read = new Scanner(System.in);

                String GDT[][]={{"0000000000000000","00000000000000000000000000001111"},{"0000000000000001","00000000000000000000000011111111"},

{"0000000000000010","00000000000000000000111111111111"}};

                String PD[][]={{"00000000000000000000000000000000","00000000000000000001000000000000"},{"00000000000000000000000000000001","00000000000000000010000000000000"},

{"00000000000000000000000000000001","00000000000000000011000000000000"}};

87. BRANCH PREDICTION LOGIC IN JAVA

import java.io.*;

import java.util.*;

class bpl

{/*Status taken

3:Strongly Taken

2:Weakly Taken

1:Weakly Not Taken

0:Strongly Not Taken*/

                static String btb[][];

public static void main(String args[])throws IOException

{

86. FLOATING POINT ADDER IN JAVA

import java.io.*;

import java.util.*;

class FloatingPointAdder

{          int exp;

            Scanner s=new Scanner(System.in);

            float n1,n2;

            String temp1="",temp2="";

            int exp1,exp2;

            String tmp1="",tmp2="";

            char cry='0';    

            char s1='0',s2='0';

            String e1,e2;

            String m1="", m2="";

            int cmn_expo;

            void input()

            {

85. CAESER CIPHER IN JAVA

import java.io.*;
class Crypto
{
static int i,k,j,m,n;
static String pt="",ct="";
public static void main(String arg[])throws IOException
{
j=Integer.parseInt(arg[0]);
InputStreamReader isr= new InputStreamReader(System.in);
BufferedReader br=new BufferedReader(isr);

84. ERROR DETECTION USING CHECKSUM

//CHECKSUM

import java.util.*;

public class Checksum 
{
static int check[]=new int[4];
static int code[]=new int[12];
public static void exor(int a[], int n)
{
int i,j=0;
for(i=0;i<4;i++)
{
if((a[i]==1 && a[i+4]==1)||(a[i]==0 && a[i+4]==0))
{
check[i]=0;
}
else
{
check[i]=1;
}     
}

83. STOP & WAIT PROTOCOL USING SOCKETS IN JAVA

//SENDER PROGRAM

import java.io.*;

import java.net.*;

public class Sender{

Socket sender;

ObjectOutputStream out;

ObjectInputStream in;

String packet,ack,str, msg;

int n,i=0,sequence=0;

Sender(){}

public void run(){

 try{

 BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

System.out.println("Waiting for Connection....");

 sender = new Socket("localhost",2004);

sequence=0;

82. JAVA PROGRAM FOR SLIDING WINDOW PROTOCOL

//SENDER PROGRAM

import java.net.*;

import java.io.*;

import java.rmi.*;

public class slidsender

{

public static void main(String a[])throws Exception

{

ServerSocket ser=new ServerSocket(10);

Socket s=ser.accept();

DataInputStream in=new DataInputStream(System.in);

DataInputStream in1=new DataInputStream(s.getInputStream());

String sbuff[]=new String[8];

PrintStream p;

int sptr=0,sws=8,nf,ano,i;

String ch;

do

{

p=new PrintStream(s.getOutputStream());

System.out.print("Enter the no. of frames : ");

nf=Integer.parseInt(in.readLine());

p.println(nf);

if(nf<=sws-1)

{

81. TCP/UDP CLIENT SERVER PROGRAM IN JAVA

//CLEINT PROGRAM

import java.io.*;

import java.net.*;

import java.lang.*;

class client

{

public static void main(String a[])throws IOException

{

Socket s=new Socket("LocalHost",8000);

DataInputStream in=new DataInputStream(s.getInputStream());

DataInputStream inn=new DataInputStream(System.in);

PrintStream dos=new PrintStream(s.getOutputStream());

while(true)

{

String str=in.readLine();

System.out.println("msg received:"+str);

if(str.equals("end"))

{

80. JAVA PROGRAM FOR HAMMING CODE

//HAMMING CODE

import java.util.*;

import java.lang.*;

class Hamming

{

            public static void main(String args[])

            {

                        int i=0,j,d=0,sum=0;

                        int a[]=new int[7];

                        int b[]=new int[11];

                        int c[]=new int[11];

                        int p[]=new int[4];

                        Scanner sr=new Scanner(System.in);

                        System.out.println("Enter the data code:");

                        for(i=0;i<7;i++)

                        {

                                    a[i]=sr.nextInt();

                        }