Q.1 Write a JSP program to check whether given number is Perfect or not. (Use Include directive).
A) Write a JSP program to check whether given number is Perfect or not. (Use Include
directive).
Answer :
Slip2A.html
<body>
<h1>Find Perfect Number</h1>
<form action=”http://127.0.0.1:8080/java/Slip2A.jsp” method=”GET”>
Enter Number : <input type=’text’ name=’no’>
<input type=’submit’ value=’SUBMIT’>
</form>
</body>
</html>
Slip2A.jsp
<%@ page language=”java” %>
<html>
<body>
<%
int n = Integer.parseInt(request.getParameter(“no”));
int n1=0;
for(int i=1; i<n; i++){
if(n%i==0){
n1+=i;
}
}
if(n1==n){
out.println(“Perfect Number”);
}else{
out.println(“not Perfect Number”);
}
%>
</body>
</html>
Q.2 Write a java program in multithreading using applet for drawing flag.
import java.awt.*;
public class Slip2B extends Frame{
int f = 0;
public Slip2B(){
Signal s = new Signal();
s.start();
setSize(500,500);
setVisible(true);
}
public void paint (Graphics g){
switch (f){
case 0 :
g.drawLine(150, 50, 150, 300);
case 1 :
g.drawRect(150, 50, 100, 90);
}
}
class Signal extends Thread{
public void run(){
while(true){
f = (f+1)%2;
repaint();
try{
Thread.sleep(1000);
}catch(Exception e){
}
}
}
}
public static void main(String args[]){
new Slip2B();
}
}