HangMan

Following Code is Hangman Like game without graphics inspired by Duta http:duta.in:


Code:

import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;

public class Main {
static String check="AEIOU";
public static void main(String[] args) {
ArrayList<String> questions=new ArrayList<>();
questions.add("ABRUPTLY");
questions.add("BOOKWORM");
questions.add("GALAXY");
questions.add("PNEUMONIA");
questions.add("STRONGHOLD");
questions.add("WHIZZING");
questions.add("PUZZLING");
questions.add("WRISTWATCH");
questions.add("ZODIAC");
questions.add("THUMBSCREW");
questions.add("YACHTSMAN");
questions.add("MNEMONIC");
questions.add("TRANSPLANT");
questions.add("RHYTHM");
questions.add("MICROWAVE");
Collections.shuffle(questions);
String ques=questions.get(0);
   char[] given=new char[ques.length()];
   int count=0;
   for(int i=0;i<given.length;i++) {
    if(varcheck(ques.charAt(i))) {
    given[i]=ques.charAt(i);
    }else {
    given[i]='_';
    }
   }
   boolean win=false;
   Scanner in=new Scanner(System.in);
   StringBuffer buffer=new StringBuffer();
outer:
   while(count<7 && !win) {
    for(int i=0;i<given.length;i++) {
    System.out.print(given[i]+" ");
    }
    System.out.println();
    System.out.println("Guess a Letter");
    char c=in.nextLine().toUpperCase().charAt(0);
    int i=0;
    while(i<given.length) {
    if(given[i]==c) {
    System.out.println("Already Present in Word!!");
    System.out.println("Guessed Letters : "+buffer);
    System.out.println("Chances left : "+(7-count));
    System.out.println("------------------------------");
    continue outer;
    }i++;
    }
    if(buffer.toString().contains(c+"")) {
    System.out.println("Already Guessesed!!");
    System.out.println("Guessed Letters : "+buffer);
    System.out.println("Chances left : "+(7-count));
    System.out.println("------------------------------");
    continue outer;
    }
    if(ques.contains(c+"")) {
    int idx=ques.indexOf(c);
    while(idx>=0) {
    given[idx]=c;
    idx=ques.indexOf(c,idx+1);
    win=true;
    }
    System.out.println("Good Guess!!");
    }else {
    count++;
    System.out.println("Bad Guess!!");
    }
    buffer.append(c+",");
    System.out.println("Guessed Letters : "+buffer.toString().substring(0,buffer.length()-1));
    System.out.println("Chances left : "+(7-count));
    for(char x: given) {
    if(x=='_') {
    win=false;
    }
    }
    System.out.println("--------------------------------\n");
   }
    System.out.println("Word is : "+ques);
   if(win) {
    System.out.println("Congratulations,You win!!");
   }else {
    System.out.println("You Loose!!,Don't Worry Try Again");
   }
   in.close();
}
static boolean varcheck(char c) {
if(check.contains(c+"")) return true;
return false;
}

}

Output:

Desired Number of Quark Pairs

Following Code will give you desired number of quark pairs:


Code:

import java.util.Scanner;

public class MainQuark {
public static void main(String[] nt) {
System.out.print("Enter Value of N :");
int n;
Scanner in=new Scanner(System.in);
n=in.nextInt();
        int count=0,i=1,num;
        StringBuffer buffer=new StringBuffer();
while(count!=n) {
num=i;
int q=quark(num);
if(!prime(q)) {
for(int j=num+1;j<q;j++) {
if(q==quark(j)) {
buffer.append(i+"-"+j+"\n");
count++;
}
}
}
i++;
}
System.out.println("Pairs are\n"+buffer.toString());
}
static int quark(int n) {
int one=0,i=n;
while(n>0) {
if(n%2==1) {
one++;
}n=n/2;
}return one*(i);
}

static boolean prime(int n) {
for(int i=2;i<n/2;i++) {
if(n%i==0) return false;
}return true;
}

}

Output:

Quark Pairs Upto N

Quark Pairs: 

Code:

import java.util.Scanner;

public class MainQuark {

public static void main(String[] nt) {

System.out.print("Enter Value of N :");

int n;

Scanner in=new Scanner(System.in);

n=in.nextInt();

int[] quarks=new int[n];

int num=0;

for(int i=0;i<n;i++) {

num=i+1;

int one=0;

while(num>0) {

if(num%2==1) {

one++;

}num=num/2;

}

quarks[i]=one*(i+1);

}

StringBuffer buffer=new StringBuffer();

for(int i=0;i<n;i++) {

for(int j=i+1;j<n;j++) {

if(quarks[i]==quarks[j]) {

buffer.append((i+1)+"-"+(j+1)+"\n");

}

}

}

System.out.println("All Pairs upto "+n+" : ");

System.out.println(buffer.toString());

}

}

Output:

K-means Clustering

 What is K-means? 
1. Partitional clustering approach 
2. Each cluster is associated with a centroid (center point) 
3. Each point is assigned to the cluster with the closest centroid 
4 Number of clusters K must be specified 


Following Code will find the value of K :


Code:

Main.Java

import java.util.ArrayList;

import java.util.Collections;

public class Main {

   public static void main(String[] args) {
        long start=System.currentTimeMillis();
       int k=1;
      Point[] p=new Point[5];
      p[0]=new Point(1,1);
      p[1]=new Point(1,0);
      p[2]=new Point(0,2);
      p[3]=new Point(2,4);
      p[4]=new Point(3,5);
      
      ArrayList<Point> given=new ArrayList<>();
      given.add(p[0]);
      given.add(p[1]);
      given.add(p[2]);
      given.add(p[3]);
      given.add(p[4]);
      
      Collections.shuffle(given);
      Point c1=new Point(given.get(0));
      Point c2=new Point(given.get(1));


      ArrayList<Point>cluster1=new ArrayList<>();
      ArrayList<Point>cluster2=new ArrayList<>();

      ArrayList<Point>newcluster1=new ArrayList<>();
      ArrayList<Point>newcluster2=new ArrayList<>();

      double dc1,dc2;
      for(int i=0;i<5;i++) {
         dc1=c1.distance(p[i]);
         dc2=c2.distance(p[i]);
         if(dc1<dc2) {
            cluster1.add(p[i]);
         }else if(dc2<dc1) {
            cluster2.add(p[i]);
         }
      }
        c1.x=meanx(cluster1);
        c1.y=meany(cluster1);
        c2.x=meanx(cluster2);
        c2.y=meany(cluster2);
        do {
            if(!(newcluster1.isEmpty()&& newcluster2.isEmpty())) {
                cluster1.clear();
                System.out.println(cluster1.size());
                cluster1.addAll(newcluster1);
                cluster2.clear();
                cluster2.addAll(newcluster2);
                newcluster1.clear();
                newcluster2.clear();
            }
            for(int i=0;i<5;i++) {
                dc1=c1.distance(p[i]);
                dc2=c2.distance(p[i]);
                if(dc1<=dc2) {
                    newcluster1.add(p[i]);
                }else {
                    newcluster2.add(p[i]);
                }
            }
            c1.x=meanx(newcluster1);
            c1.y=meany(newcluster1);
            c2.x=meanx(newcluster2);
            c2.y=meany(newcluster2);
            k++;
        }while(!(compareCluster(cluster1, newcluster1)||compareCluster(cluster1, newcluster2))&&(compareCluster(cluster2, newcluster2)||compareCluster(cluster2, newcluster1)));
        System.out.println("Value of K is  : "+k);
      System.out.println("Time Taken : "+(System.currentTimeMillis()-start)+" milliseconds");
   }

    static boolean compareCluster(ArrayList<Point> c1,ArrayList<Point> c2) {
      if(c1.size()!=c2.size()||c1==null&&c2!=null||c1!=null&&c2==null) return false;
      if(c1==null && c2==null) return true;
      for(int i=0;i< c1.size();i++){
           if(! c2.contains(c1.get(i))) return false;
        }
        return true;
   }


   static double meanx(ArrayList<Point> c) {
      double sumx=0;
      for(int i=0;i<c.size();i++) {
         sumx+=c.get(i).x;
      }
      return sumx/c.size();
   }

    static double meany(ArrayList<Point> c) {
        double sumy=0;
        for(int i=0;i<c.size();i++) {
            sumy+=c.get(i).y;
        }
        return sumy/c.size();
    }
}

-------------------------------------------------------------------------------------------

Point.Java

public class Point {
   double x,y;
   
   Point(double a,double b){
      x=a;
      y=b;
   }
   Point(Point b){
      x=b.x;
      y=b.y;
   }
   
   double distance(Point b) {
      return Math.sqrt(Math.pow((x-b.x),2)+Math.pow((y-b.y),2));
   }

   @Override   public String toString() {
      return "Point [x=" + x + ", y=" + y + "]";
   }

}




For any Suggestions please Click Here




Output:

GUI based Database Connectivity

Code:


NearurBank.java


JDBCUSE.java

Bank.java




Please refer to above links and Your Contribution is welcomed.........

Registration Form JSwing

Code:


import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileOutputStream;
import java.io.ObjectOutputStream;

import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JRadioButton;
import javax.swing.JTextArea;
import javax.swing.JTextField;

class form {
JFrame fr;
JPanel ptitle,pnam,peml,pmob,ppas,pgen,padr,psub,pall;
JButton btn;
JLabel ltitle,lnam,leml,lmob,lpas,lgen,ladr;
JTextField tnam,teml,tmob;
JTextArea tadr;
JPasswordField tpas;
JRadioButton male,fem;
ButtonGroup bg;
JDialog d;
Customers c=new Customers();

form(){
fr=new JFrame("Nearur Registration");

ptitle=new JPanel();
pnam=new JPanel();
peml=new JPanel();
pmob=new JPanel();
ppas=new JPanel();
pgen=new JPanel();
padr=new JPanel();
psub=new JPanel();
pall=new JPanel();

ltitle =new JLabel("Registration Form");
lnam =new JLabel("Enter Your Full Name:");
leml =new JLabel("Enter Your Email:");
lmob =new JLabel("Enter Your Mobile Number:");
lpas =new JLabel("Enter Your Password:");
lgen =new JLabel("Gender:");
ladr =new JLabel("Enter Your Address:");

tnam=new JTextField(16);
teml=new JTextField(16);
tmob=new JTextField(10);
tadr=new JTextArea(3,20);
tpas=new JPasswordField(16);

btn =new JButton("Submit");

male=new JRadioButton("Male");
fem=new JRadioButton("Female");
bg=new ButtonGroup();


d=new JDialog();
}

void generate() {

ptitle.add(ltitle);

pnam.add(lnam);
pnam.add(tnam);

peml.add(leml);
peml.add(teml);

pmob.add(lmob);
pmob.add(tmob);

ppas.add(lpas);
ppas.add(tpas);

pgen.add(lgen);
bg.add(male);
bg.add(fem);
pgen.add(male);
pgen.add(fem);

padr.add(ladr);
padr.add(tadr);

psub.add(btn);

pall.add(ptitle);
pall.add(pnam);
pall.add(peml);
pall.add(pmob);
pall.add(ppas);
pall.add(pgen);
pall.add(padr);
pall.add(psub);

GridLayout layout = new GridLayout(8, 1);
pall.setLayout(layout);

fr.add(pall);

fr.pack();
fr.setVisible(true);

btn.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent arg0) {
save();
}

});

}
void save() {
c.name=tnam.getText();
c.mobile=Long.parseLong(tmob.getText());
c.password=tpas.getPassword().toString();
c.Address=tadr.getText();
c.email=teml.getText();
if(male.isSelected()) {
c.g='M';
}
else {
c.g='F';
}
File f=new File("C:/Users/mrdis/Desktop","Customers.txt");
FileOutputStream w=null;
ObjectOutputStream oos=null;
try {
w = new FileOutputStream(f);
oos=new ObjectOutputStream(w);
oos.writeObject(c);
} catch (Exception e) {

e.printStackTrace();
}finally {
try {
w.close();
oos.close();
}catch(Exception e) {


}
}


JOptionPane.showMessageDialog(fr,"Successful");
tnam.setText("");
tpas.setText("");
teml.setText("");
tadr.setText("");
tmob.setText("");
bg.clearSelection();
}
}
public class NearurRegistration {

public static void main(String[] args) {
new form().generate();
       
}

}

Output:

Notepad Using Java

Code:

package com.nearur;

import java.awt.FileDialog;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.print.PrinterException;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JTextArea;

class notep{
JFrame fr;
JTextArea a;
JMenuBar mb;
JMenu File,Edit,Format,View,Help;
JMenuItem New,Exit,Open,Save,Cut,Copy,Paste,Print,Delete;
FileDialog d,op;

       notep() {
fr=new JFrame("NotePad");
d=new FileDialog(fr,"Save",FileDialog.SAVE);
op=new FileDialog(fr,"Save",FileDialog.LOAD);
a=new JTextArea();

File=new JMenu("File");
Edit=new JMenu("Edit");
Format=new JMenu("Format");
View=new JMenu("View");
Help=new JMenu("Help");

New=new JMenuItem("New");
Exit=new JMenuItem("Exit");
Open=new JMenuItem("Open");
Save=new JMenuItem("Save");
Print=new JMenuItem("Print");
Cut=new JMenuItem("Cut");
Copy=new JMenuItem("Copy");
Paste=new JMenuItem("Paste");
Delete=new JMenuItem("Delete");

mb=new JMenuBar();

File.add(New);
File.add(Open);
File.add(Save);
File.add(Print);
File.add(Exit);

Edit.add(Cut);
Edit.add(Copy);
Edit.add(Paste);
Edit.add(Delete);

mb.add(File);
mb.add(Edit);
mb.add(Format);
mb.add(View);
mb.add(Help);

fr.setJMenuBar(mb);
Cut.setEnabled(false);
Copy.setEnabled(false);
Paste.setEnabled(false);
Save.setEnabled(false);
Delete.setEnabled(false);
Print.setEnabled(false);

New.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent arg0) {

fr.add(a);
fr.setTitle("Untitled-NotePad");
fr.setVisible(true);
Save.setEnabled(true);
Cut.setEnabled(true);
Copy.setEnabled(true);
Paste.setEnabled(true);
Delete.setEnabled(true);
Print.setEnabled(true);
}

});

Exit.addActionListener(new ActionListener() {


public void actionPerformed(ActionEvent arg0) {

fr.dispose();

}

});

Cut.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent arg0) {

try {
a.print();
} catch (PrinterException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

});


Cut.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent arg0) {

a.cut();
}

});
Copy.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent arg0) {
a.copy();
}

});
Paste.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent arg0) {

a.paste();
}

});
Delete.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent arg0) {
a.replaceSelection("");
}

});
Save.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent arg0) {
String data=a.getText();
d.setVisible(true);
File f =new File(d.getDirectory(),d.getFile());
FileOutputStream r=null;
try {

r=new FileOutputStream(f,true);
char a[]=data.toCharArray();
int i=0;
while(i<a.length){
r.write((int)a[i]);
i++;
}
r.close();
                                       fr.setTitle(d.getFile()+" Notepad");
} catch (Exception e) {

e.printStackTrace();
}
}

});
Open.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent arg0) {
op.setVisible(true);
File f =new File(op.getDirectory(),op.getFile());
FileInputStream in=null;
try {
in=new FileInputStream(f);
int ch=0;
StringBuffer line=new StringBuffer();
while((ch=in.read())!=-1) {
line.append((char)ch+"");
}
a.setText(line.toString());
fr.add(a);
fr.setTitle(op.getFile()+" Notepad");
fr.setVisible(true);
in.close();
}catch(Exception e ){

}
}

});


fr.pack();
fr.setSize(300,300);
fr.setVisible(true);
}
}
public class Notepad {

public static void main(String[] args) {
new notep();
}

}

Output: