Download 2)prime numbers

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1) Fibanasis serice:
public class FibonaciEx{
int a;
int b;
int fib;
public void Recursion(int a,int b,int n){
fib=a+b;
if(fib<=n){
System.out.println("Using Recursion Method\t"+fib);
a=b;
b=fib;
Recursion(a,b,n);
}
}
public void Non_Recursion(int a,int b,int n){
fib=a+b;
while(fib<=n){
System.out.println("Using Non_Recursion Method\t"+fib);
a=b;
b=fib;
fib=a+b;
}
}
public static void main(String a[]){
int x=Integer.parseInt(a[0]);
FibonaciEx fib=new FibonaciEx();
System.out.println("Using Recursion Method\t"+1);
fib.Recursion(0,1,x);
System.out.println("\n");
System.out.println("Using Non_Recursion Method\t"+1);
fib.Non_Recursion(0,1,x);
}
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}
2)prime numbers
import java.util.Scanner;
public class PrimeNum
{
static int count;
public static void main(String args[]){
Scanner scan=new Scanner(System.in);
System.out.println("Enter the number");
int num=scan.nextInt();
System.out.println("Prime Numbers Up To "+num+" Are");
for(int i=1;i<=num;i++){
count=0;
for(int j=1;j<=i;j++){
int rem=i%j;
if(rem==0){
count=count+1;
}
}
if(count==2){
System.out.println(i);
}
}
}
}
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3)polindrome
import java.util.Scanner;
public class Palindrome
{
public static void main(String args[])
{
Palindrome p=new Palindrome();
System.out.println("Enter The String");
Scanner scan=new Scanner(System.in);
String original=scan.next();
int length=original.length();
String rev="";
for(int i=length-1;i>=0;i--)
{
rev=rev+original.charAt(i);
}
if(rev.equals(original))
{
System.out.println("Palindrome");
}
else
{
System.out.println("Not Palindrome");
}
}
}
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4)sorting order
import java.util.Scanner;
public class StringSort
{
static String names[]=new String[5];
public static void main(String args[])
{
StringSort ss=new StringSort();
ss.read();
ss.sort();
ss.printing();
}
public void read()
{
Scanner scan=new Scanner(System.in);
for(int i=0;i<5;i++)
{
System.out.println("Enter Name");
names[i]=scan.next();
}
}
public void printing()
{
System.out.println("After Sorting Names");
for(int i=0;i<5;i++)
{
System.out.println(names[i]);
}
}
public void sort()
{
String temp="";
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for(int i=0;i<5;i++)
{
for(int j=i+1;j<5;j++)
{
if(names[i].compareTo(names[j])>0)
{
temp=names[i];
names[i]=names[j];
names[j]=temp;
}
}
}
}
}
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5)matrix mutiplication
import java.util.Scanner;
public class MatrixOperations
{
static Scanner scan=new Scanner(System.in);
static int rows=0,cols=0,rows1=0,cols1=0;
static int m1[][]=new int[10][10];
static int m2[][]=new int[10][10];
static int res[][]=new int[10][10];
public void reading(int row,int col,int m[][])
{
for(int i=0;i<row;i++)
{
for(int j=0;j<col;j++)
{
m[i][j]=scan.nextInt();
}
}
}
public void writing(int row,int col,int m[][])
{
for(int i=0;i<row;i++)
{
for(int j=0;j<col;j++)
{
System.out.print("\t"+m[i][j]);
}
System.out.println("");
}
}
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public void compatibility()
{
System.out.println("Enter Rows For First Matrix");
rows=scan.nextInt();
System.out.println("Enter Cols For First Matrix");
cols=scan.nextInt();
System.out.println("Enter Rows For Second Matrix");
rows1=scan.nextInt();
System.out.println("Enter Cols For Second Matrix");
cols1=scan.nextInt();
}
public void multiply()
{
for(int i=0;i<rows;i++)
{
for(int j=0;j<cols1;j++)
{
res[i][j]=0;
for(int k=0;k<cols;k++)
{
res[i][j]=m1[i][k]*m2[k][j]+res[i][j];
}
}
}
}
public static void main(String args[])
{
MatrixOperations mo=new MatrixOperations();
mo.compatibility();
if(cols==rows1)
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{
System.out.println("Enter First Matrix");
mo.reading(rows,cols,m1);
System.out.println("Enter Second Matrix");
mo.reading(rows1,cols1,m2);
System.out.println("First Matrix");
mo.writing(rows,cols,m1);
System.out.println("Second Matrix");
mo.writing(rows1,cols1,m2);
mo.multiply();
System.out.println("Matrix Multiplication is");
mo.writing(rows,cols1,res);
mo.transpose();
}
else
{
System.out.println("Matrix Cannot Be Multiplied");
}
}
public void transpose()
{
System.out.println("Transpose of Matrix");
for(int i=0;i<rows;i++)
{
for(int j=0;j<cols1;j++)
{
System.out.print("\t"+res[j][i]);
}
System.out.println("");
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}
}
}
7) Run time ploymorfisum
import java.util.Scanner;
public class RunTimePoly
{
public static void main(String args[])
{
RunTimePoly rp=new RunTimePoly();
Scanner scan=new Scanner(System.in);
System.out.println("Enter Data");
String kind=scan.next();
Animal ref=rp.getMethod(kind);
ref.speak();
}
public Animal getMethod(String kind)
{
if(kind.equals("Cow"))
{
Cow c=new Cow();
return c;
}
elseif(kind.equals("Dog"))
{
Dog d=new Dog();
return d;
}
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else
return new Cat();
}
}
interface Animal
{
public void speak();
}
class Cow implements Animal
{
public void speak()
{
System.out.println("Cow Cow");
}
}
class Dog extends Cow
{
public void speak()
{
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System.out.println("Dog Dog");
}
}
class Cat extends Dog
{
public void speak()
{
System.out.println("Cat Cat");
}
}
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8) Creation of a package
package pack;
public class First
{
public void hello()
{
System.out.println("Class name First");
}
}
b) package pack.pack1;
public class Second
{
public void hello()
{
System.out.println("Class name Second");
}
}
c) package pack.pack1;
public class Third
{
public void hello()
{
System.out.println("Class name Third");
}
}
d)import pack.First;
import pack.pack1.*;
public class PackageDemo
{
public static void main(String args[])
{
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First f=new First();
f.hello();
Second s=new Second();
s.hello();
Third t=new Third();
t.hello();
}
}
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9) StringTokenize class
import java.util.StringTokenizer;
import java.util.Scanner;
import java.io.*;
public class StringToken
{
public static void main(String args[])
throws Exception
{
Scanner scan=new Scanner(System.in);
InputStreamReader fis=new InputStreamReader(System.in);
BufferedReader br=new BufferedReader(fis);
String num=br.readLine();
StringTokenizer str=new StringTokenizer(num);
int sum=0;
while(str.hasMoreTokens())
{
String st=str.nextToken();
System.out.println(st);
sum=sum+Integer.parseInt(st);
}
System.out.println("Sum of all Integers is"+sum);
}
}
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10)file oparations
import java.io.*;
import java.util.Scanner;
public class FileOperations
{
public static void main(String args[])
throws Exception
{
Scanner scan=new Scanner(System.in);
System.out.println("Enter File Name With Extension");
String fname=scan.next();
File ff=new File(fname);
if(ff.exists())
{
System.out.println("File Existed");
if(ff.isFile())
{
System.out.println("Type : File");
long l=ff.length();
System.out.println("File Size is"+l);
}
else
{
System.out.println("Type : Directory");
}
if(ff.canRead())
{
System.out.println("File Readable");
}
if(ff.canWrite())
{
System.out.println("File Writable");
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}
}
else
{
System.out.println("File Not Existed");
}
}
}
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11)lenth of the word
import java.io.*;
import java.util.Scanner;
import java.util.StringTokenizer;
public class NumberOfLW
{
public static void main(String args[])
throws Exception
{
String stt="";
int clines=0;
int cwords=0;
int length=0;
int cchar=0;
Scanner scan=new Scanner(System.in);
System.out.println("Enter File Name With Extension");
String fname=scan.next();
FileReader fr=new FileReader(fname);
BufferedReader br=new BufferedReader(fr);
while((stt=br.readLine())!=null)
{
clines=clines+1;
StringTokenizer st=new StringTokenizer(stt);
while(st.hasMoreTokens())
{
cwords=cwords+1;
cchar=cchar+st.nextToken().length();
}
}
fr.close();
br.close();
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System.out.println("Number of lines"+clines);
System.out.println("Number of words"+cwords);
System.out.println("Number of chars"+cchar);
}
}
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12) applet
a)import java.io.*;
import java.applet.*;
import java.awt.*;
/*
<applet code=AppletFile width=100 height=100>
</applet>
*/
public class AppletFile extends Applet
{
TextArea ta=new TextArea();
public void init()
{
setLayout(new BorderLayout());
add(ta);
}
public void paint(Graphics g)
{
}
}
b)HTML CODE
<html>
<body>
<applet code="AppletFile.class" width=100 height=100 alt=AppletEx>
</applet>
</body>
</html>
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13)caliculator
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
/*
<applet code="Cal" width=300 height=300>
</applet>
*/
public class Cal extends Applet
implements ActionListener
{
String msg=" ";
int v1,v2,result;
TextField t1;
Button b[]=new Button[10];
Button add,sub,mul,div,clear,mod,EQ;
char OP;
public void init()
{
Color k=new Color(120,89,90);
setBackground(k);
t1=new TextField(10);
GridLayout gl=new GridLayout(4,5);
setLayout(gl);
for(int i=0;i<10;i++)
{
b[i]=new Button(""+i);
}
add=new Button("add");
sub=new Button("sub");
mul=new Button("mul");
div=new Button("div");
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mod=new Button("mod");
clear=new Button("clear");
EQ=new Button("EQ");
t1.addActionListener(this);
add(t1);
for(int i=0;i<10;i++)
{
add(b[i]);
}
add(add);
add(sub);
add(mul);
add(div);
add(mod);
add(clear);
add(EQ);
for(int i=0;i<10;i++)
{
b[i].addActionListener(this);
}
add.addActionListener(this);
sub.addActionListener(this);
mul.addActionListener(this);
div.addActionListener(this);
mod.addActionListener(this);
clear.addActionListener(this);
EQ.addActionListener(this);
}
public void actionPerformed(ActionEvent ae)
{
String str=ae.getActionCommand();
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char ch=str.charAt(0);
if ( Character.isDigit(ch))
t1.setText(t1.getText()+str);
else
if(str.equals("add"))
{
v1=Integer.parseInt(t1.getText());
OP='+';
t1.setText("");
}
else if(str.equals("sub"))
{
v1=Integer.parseInt(t1.getText());
OP='-';
t1.setText("");
}
else if(str.equals("mul"))
{
v1=Integer.parseInt(t1.getText());
OP='*';
t1.setText("");
}
else if(str.equals("div"))
{
v1=Integer.parseInt(t1.getText());
OP='/';
t1.setText("");
}
else if(str.equals("mod"))
{
v1=Integer.parseInt(t1.getText());
OP='%';
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t1.setText("");
}
if(str.equals("EQ"))
{
v2=Integer.parseInt(t1.getText());
if(OP=='+')
result=v1+v2;
else if(OP=='-')
result=v1-v2;
else if(OP=='*')
result=v1*v2;
else if(OP=='/')
result=v1/v2;
else if(OP=='%')
result=v1%v2;
t1.setText(""+result);
}
if(str.equals("clear"))
{
t1.setText("");
}
}
}
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14) mouse events
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
public class MouseHandling extends Frame implements
MouseListener,MouseMotionListener
{
Label l=new Label("Mouse Handling");
Label l1=new Label();
public MouseHandling()
{
setLayout(new GridLayout());
setResizable(false);
add(l);
l.setFont(new Font("",1,15));
l.addMouseListener(this);
l.addMouseMotionListener(this);
add(l1);
l1.setFont(new Font("",1,15));
l1.addMouseListener(this);
l1.addMouseMotionListener(this);
}
public static void main(String arg[])
{
MouseHandling mh=new MouseHandling();
mh.setVisible(true);
mh.setSize(400,300);
}
public void mouseClicked(MouseEvent me)
{
l.setText("MouseClicked");
}
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public void mouseEntered(MouseEvent me)
{
l.setText("MouseEntered");
}
public void mouseExited(MouseEvent me)
{
l.setText("MouseExisted");
}
public void mousePressed(MouseEvent me)
{
l.setText("MousePressed");
}
public void mouseReleased(MouseEvent me)
{
l1.setText("Mouse Released");
}
public void mouseDragged(MouseEvent me)
{
l.setText("Mouse Dragged");
}
public void mouseMoved(MouseEvent me)
{
l1.setText("Mouse Moved");
}
}
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15)thread life cycle
a)public class ThreadLC
{
public static void main(String args[])
{
Tha aa=new Tha();
aa.start();
Thb bb=new Thb();
bb.start();
}
}
class Tha extends Thread
{
public void run()
{
try{
for(int i=1;i<=10;i++)
{
if(i==2)
{
Thread.sleep(2000);
System.out.println("Thread Sleep at A2");
}
System.out.println("A"+i);
}
} catch(Exception ex)
{
}
}
}
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class Thb extends Thread
{
public void run()
{
try{
for(int i=0;i<=10;i++)
{
if(i==8)
{
System.out.println("Thread Stopped at B8");
stop();
}
System.out.println("B"+i);
}
} catch(Exception ex)
{
}
}
}
b)thread sleep
public class ThreadSleep
{
public static void main(String args[])
throws Exception
{
tha aa=new tha();
aa.start();
thb bb=new thb();
bb.start();
thc cc=new thc();
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cc.start();
}
}
class tha extends Thread
{
public void run()
{
try{
Thread.sleep(1000);
System.out.println("Good Morning");
} catch(Exception ex){}
}
}
class thb extends Thread
{
public void run()
{
try{
Thread.sleep(3000);
System.out.println("Hello");
} catch(Exception ex){}
}
}
class thc extends Thread
{
public void run()
{
try{
Thread.sleep(6000);
System.out.println("Welcome");
} catch(Exception ex){}
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}
}
16)pie chart wit(swings & awt)
import java.awt.*;
import java.awt.event.*;
import java.awt.font.*;
import java.awt.geom.*;
import java.awt.image.*;
import java.text.*;
import javax.swing.*;
public class PieChartExample
{
public static void main(String[] args)
{
JFrame f = new JFrame("Pie Chart");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.getContentPane().add(new PieChartPanel());
f.setSize(350,300);
f.setLocation(300,300);
f.setVisible(true);
}
}
class PieChartPanel extends JPanel
{
BufferedImage image;
final int PAD = 30;
Font font;
NumberFormat numberFormat;
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public PieChartPanel()
{
font = new Font("Book Antiqua", Font.BOLD, 20);
numberFormat = NumberFormat.getPercentInstance();
addMouseListener(new Visibility(this));
addComponentListener(new ComponentAdapter()
{});
}
protected void paintComponent(Graphics graphics)
{
super.paintComponent(graphics);
Graphics2D graphics2d = (Graphics2D)graphics;
graphics2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
createChartImage();
graphics2d.drawImage(image, 0, 0, this);
}
private void createChartImage()
{
int[] marks = { 98, 76, 90, 85, 75 };
int width = getWidth();
int height = getHeight();
int cp = width/2;
int cq = height/2;
image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics2D g2 = image.createGraphics();
g2.setPaint(Color.blue);
g2.fillRect(0, 0, width, height);
g2.setPaint(Color.black);
int pie = Math.min(width,height) - 2*PAD;
g2.draw(new Ellipse2D.Double(cp - pie/2, cq - pie/2, pie, pie));
double total = 0;
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for(int j = 0; j < marks.length; j++)
total += marks[j];
double theta = 0, phi = 0;
double p, q;
for(int j = 0; j < marks.length; j++)
{
p = cp + (pie/2) * Math.cos(theta);
q = cq + (pie/2) * Math.sin(theta);
g2.draw(new Line2D.Double(cp, cq, p, q));
phi = (marks[j]/total) * 2 * Math.PI;
p = cp + (9*pie/24) * Math.cos(theta + phi/2);
q = cq + (9*pie/24) * Math.sin(theta + phi/2);
g2.setFont(font);
String st = String.valueOf(marks[j]);
FontRenderContext frc = g2.getFontRenderContext();
float textWidth = (float)font.getStringBounds(st, frc).getWidth();
LineMetrics lm = font.getLineMetrics(st, frc);
float sp = (float)(p - textWidth/2);
float sq = (float)(q + lm.getAscent()/2);
g2.drawString(st, sp, sq);
p = cp + (pie/2 + 4*PAD/5) * Math.cos(theta + phi/2);
q = cq + (pie/2 + 4*PAD/5) * Math.sin(theta+ phi/2);
st = numberFormat.format(marks[j]/total);
textWidth = (float)font.getStringBounds(st, frc).getWidth();
lm = font.getLineMetrics(st, frc);
sp = (float)(p - textWidth/2);
sq = (float)(q + lm.getAscent()/2);
g2.drawString(st, sp, sq);
theta += phi;
}
g2.dispose();
}
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public void toggleVisibility()
{
repaint();
}
}
class Visibility extends MouseAdapter
{
PieChartPanel piechart;
public Visibility(PieChartPanel pc)
{
piechart = pc;
}
public void mousePressed(MouseEvent event)
{
if(event.getClickCount() > 1)
piechart.toggleVisibility();
}
}
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17) draw the lines
import javax.swing.*;import java.awt.*;
public class cizim extends JPanel{
//www.bilgisayarkavramlari.com public void paintComponent(Graphics g)
{
g.drawLine(0,0,90,90);
} public static void main(String args[])
{
JFrame jf = new JFrame();
jf.add(new cizim());
jf.setSize(500,500);
jf.setVisible(true); }}
import javax.swing.*;
import <strong class="highlight">java</strong>.awt.*;
public class cizim extends JPanel{
//www.bilgisayarkavramlari.com
public void paintComponent(Graphics g){
g.drawLine(0,0,90,90);
}
public static void main(String args[]){
JFrame jf = new JFrame();
jf.add(new cizim());
jf.setSize(500,500);
jf.setVisible(true);
}
}
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18)client & server
a) import java.io.*;
import java.awt.*;
import java.net.*;
public class Client
{
public static void main(String args[])
throws Exception
{
Socket clien=new Socket("localhost",555);
InputStreamReader isr=new InputStreamReader(System.in);
BufferedReader in=new BufferedReader(isr);
PrintWriter out=new PrintWriter(clien.getOutputStream());
InputStreamReader risr=new InputStreamReader(clien.getInputStream());
BufferedReader rin=new BufferedReader(risr);
String msg;
System.out.println("Enter radius");
msg=in.readLine();
out.write(msg+"\r\n");
out.flush();
System.out.println("Area of Circle is");
msg=rin.readLine();
System.out.println(""+msg);
}
}
b) import java.io.*;
import java.net.*;
import java.awt.*;
public class Server
{
public static void main(String args[])
throws Exception
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{
ServerSocket serve=new ServerSocket(555);
System.out.println("Server is Running on port 555");
Socket client=serve.accept();
System.out.println("Client Connected to Server");
InputStreamReader risr=new InputStreamReader(client.getInputStream());
BufferedReader rin=new BufferedReader(risr);
InputStreamReader isr=new InputStreamReader(System.in);
BufferedReader in=new BufferedReader(isr);
PrintWriter out=new PrintWriter(client.getOutputStream());
int radius=0;String msg;
msg=rin.readLine();
radius=Integer.parseInt(msg);
double area=(3.14*radius*radius);
msg=String.valueOf(area);
out.write(msg+"\r\n");
out.flush();
}
}
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19)random numbers
import java.util.Random;
/** Generate 10 random integers in the range 0..99. */
public final class RandomInteger {
public static final void main(String... aArgs){
log("Generating 10 random integers in range 0..99.");
//note a single Random object is reused here
Random randomGenerator = new Random();
for (int idx = 1; idx <= 10; ++idx){
int randomInt = randomGenerator.nextInt(100);
log("Generated : " + randomInt);
}
log("Done.");
}
private static void log(String aMessage){
System.out.println(aMessage);
}
}
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20)geometric figure
import java.util.Scanner;
public class ShapeGoe
{
public static void main(String args[])
{
ShapeGoe rp=new ShapeGoe();
Scanner scan=new Scanner(System.in);
System.out.println("Enter Data");
String kind=scan.next();
Shape ref=rp.getMethod(kind);
ref.numbeOfSides();
}
public Shape getMethod(String kind)
{
if(kind.equals("Trapezoid"))
{
Trapezoid c=new Trapezoid();
return c;
}
else
if(kind.equals("Triangle"))
{
Triangle d=new Triangle();
return d;
}
else
return new Hexagon();
}
}
Page:
JNTUK VIZIANAGARAM
interface Shape
{
public void numbeOfSides();
}
class Trapezoid implements Shape
{
public void numbeOfSides()
{
System.out.println("4 Sides");
}
}
class Triangle extends Trapezoid
{
public void numbeOfSides()
{
System.out.println("3 Sides");
}
}
class Hexagon extends Triangle
{
public void numbeOfSides()
{
System.out.println("6 Sides");
}
}
Page:
JNTUK VIZIANAGARAM
21)que
import java.util.Scanner;
class ExcQueue extends Exception {
ExcQueue(String s) {
super(s);
}
}
public class Queue {
int front,rear;
int q[ ]=new int[3];
Queue() {
rear=-1;
front=-1;
}
void enqueue(int n) throws ExcQueue {
if (rear==2)
throw new ExcQueue("Queue is full");
rear++;
q[rear]=n;
if (front==-1)
front=0;
}
int dequeue() throws ExcQueue {
if (front==-1)
throw new ExcQueue("Queue is empty");
int temp=q[front];
if (front==rear)
front=rear=-1;
else
front++;
return(temp);
}
Page:
JNTUK VIZIANAGARAM
Page:
public static void main(String args[ ]) {
Queue q=new Queue();
try {
q.enqueue(1);
q.enqueue(4);
q.enqueue(3);
//q.enqueue(2);//If remove comments exception will be raise because q size is 3
q.dequeue();
q.dequeue();
q.dequeue();
//q.dequeue();//If remove comments exception will be raised because at this point of q is
empty
} catch (ExcQueue e) {
System.out.println(e.getMessage());
}
}
}