Aps and Jwt Lab Manual

ADVANCED PROBLEM SOLVING AND WEB TECHNOLOGIES LAB

1) AIM: Write a program for stack using linked list

PROGRAM:

#include<iostream.h>#include<conio.h>#include<stdio.h>#include<malloc.h>struct chainnode{ int item; chainnode *next;};class stacklist{ private: struct chainnode *top; int listsize; public:

stacklist() { listsize=0; } int asizeof() { return(listsize); }

int push(int element){

struct chainnode *temp; temp=new chainnode ; if(!temp) return(0); temp->item=element; temp->next=top; top=temp; listsize++; return(1);

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}int pop(){ if(top==NULL) { cout<<"\n stack emty"; return 0; } else { struct chainnode *temp; temp=top; top=top->next;

temp->next=NULL; cout<<"\nthe poped element is:"<<temp->item;

free(temp); listsize--; return(1); }}void display(){ int i; struct chainnode *temp; temp=top; for(i=1;i<=listsize;i++) {

cout<<"\n item : "<<temp->item; temp=temp->next; } return;}~stacklist(){ int i; struct chainnode *temp; for(i=1;i<=asizeof();i++) { temp=top; top=top->next;

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free(temp); }}

};void main(){ stacklist t; char a; int i,p,q; clrscr(); do { cout<<"\n"<<"1.insert"<<"\n"<<"2.delete"<<"\n"<<"3.sizeof list"<<"\n"<<"4.display"<<"\n"; cout<<"enter number u want:"; cin>>i; switch(i) { case 1: cout<<"\nenter the item: ";

cin>>q; if(t.push(q)) cout<<"\nsucess"; else cout<<"\nfailed"; break;

case 2:if(t.pop()) cout<<"\nsucess"; else cout<<"\nfailed"; break;

case 3:cout<<"\nthe size of list is :"<<t.asizeof(); break;

case 4:t.display(); break;

default:cout<<"\nwrong entry try again"; break;

} cout<<"\ndo you want to continue:(y/n)"; cin>>a;

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}while(a=='y'); getch();}

OUTPUT:

1.insert2.delete3.size of list4.displayenter number u want:1

enter the item: 23

sucessdo you want to continue:(y/n)y


enter the item: 40



the poped element is:40sucessdo you want to continue:(y/n)y

1.insert2.delete

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3.size of list4.displayenter number u want:3

the size of list is :1do you want to continue:(y/n)n

2) AIM: Write a program for queue using linked list

PROGRAM:

#include<iostream.h>#include<conio.h>#include<stdio.h>#include<malloc.h>struct chainnode{ int item; chainnode *next;};class queuelist{ private: struct chainnode *front,*rare; int listsize;

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public: queuelist() { listsize=0; } int asizeof() { return(listsize); }

int insert(int element){

struct chainnode *temp; temp= new chainnode ; if(!temp) return(0); if(listsize==0) { temp->item=element; temp->next=NULL; front=temp; rare=temp; listsize++; } else { temp->item=element; temp->next=NULL; front->next=temp; front=temp; listsize++; return(1); } }int deletel(){ if( rare==NULL) { cout<<"\n queue emty";

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return 0; } else { struct chainnode *temp; temp=rare; rare=rare->next;

temp->next=NULL cout<<"\nthe poped element is:"<<temp->item;

free(temp); listsize--; return(1); }}void display(){ int i; struct chainnode *temp; temp=rare; for(i=1;i<=listsize;i++) {

cout<<"\n item : "<<temp->item; temp=temp->next; } return;}~queuelist(){ int i; struct chainnode *temp; for(i=1;i<=asizeof();i++) { temp=rare; rare=rare->next; free(temp); }}

};void main(){

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queuelist t; char a; int i,p,q; clrscr(); do { cout<<"\n"<<"1.insert"<<"\n"<<"2.delete"<<"\n"<<"3.size of list"<<"\n"<<"4.display"<<"\n"; cout<<"enter number u want:"; cin>>i; switch(i) { case 1: cout<<"\nenter the item: ";

cin>>q; if(t.insert(q)) cout<<"\nsucess"; else cout<<"\nfailed"; break;

case 2:if(t.deletel()) cout<<"\nsucess"; else cout<<"\nfailed"; break;

case 3:cout<<"\nthe size of list is :"<<t.asizeof(); break;

case 4:t.display(); break;

default:cout<<"\nwrong entry try again"; break;

} cout<<"\ndo you want to continue:(y/n)"; cin>>a; }while(a=='y'); getch();}

OUTPUT:

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enter the item: 32



enter the item: 67



the poped element is:32sucessdo you want to continue:(y/n)y


the poped element is:67sucess

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do you want to continue:(y/n)n

3)AIM: Write a program for implementing Binary search.

PROGRAM:

#include<iostream.h>#include<conio.h>

void main(){ int a[20],n,mid,f,l,c,flag=0,x; clrscr(); cout<<"Enter the size of the array:"; cin>>n; cout<<"\nEnter the elements in ascending order:"; for(c=0;c<n;c++) cin>>a[c]; cout<<"\nEnter the searching element:\n"; cin>>x; c=0;f=0;l=n; while((flag==0)&&(c<n)) { mid=(f+l)/2; if(a[mid]>x) l=mid-1; else if(a[mid]<x) f=mid+1; else flag=1; c=c+1; } if(flag==1) cout<<"Element is found at "<<mid+1<<"place"; else cout<<"Element is not found......"; getch(); }

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OUTPUT:

Enter the size of the array:5

Enter the elements in ascending order:234567898

Enter the searching element:78Element is found at 4 place

4) AIM: Write a program for mergesort.

PROGRAM:

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#include<iostream.h>#include<conio.h>int a[50];void merge(int,int,int);void merge_sort(int low,int high){ int mid; if(low<high) { mid=(low+high)/2; merge_sort(low,mid); merge_sort(mid+1,high); merge(low,mid,high); }}void merge(int low,int mid,int high){ int h,i,j,b[50],k; h=low; i=low; j=mid+1;

while((h<=mid)&&(j<=high)) { if(a[h]<=a[j]) { b[i]=a[h]; h++; } else { b[i]=a[j]; j++; } i++; } if(h>mid) { for(k=j;k<=high;k++) {

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b[i]=a[k]; i++; } } else { for(k=h;k<=mid;k++) { b[i]=a[k]; i++; } } for(k=low;k<=high;k++) a[k]=b[k];}void main(){ int num,i; clrscr();

cout<<endl<<endl; cout<<"Please Enter THE NUMBER OF ELEMENTS you want to sort [THEN PRESS ENTER]:"<<endl; cin>>num; cout<<endl; cout<<"Now, Please Enter the ( "<< num <<" ) numbers (ELEMENTS) [THEN PRESS ENTER]:"<<endl; for(i=1;i<=num;i++) { cin>>a[i] ; } merge_sort(1,num); cout<<endl; cout<<"So, the sorted list (using MERGE SORT) will be :"<<endl; cout<<endl<<endl;

for(i=1;i<=num;i++) cout<<a[i]<<" ";

cout<<endl<<endl<<endl<<endl;getch();

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}

OUTPUT:

Please Enter THE NUMBER OF ELEMENTS you want to sort [THEN PRESS ENTER]:5

Now, Please Enter the ( 5 ) numbers (ELEMENTS) [THEN PRESS ENTER]:235611930

So, the sorted list (using MERGE SORT) will be :

9 11 23 30 56

5) AIM: Write a program for Quick sort

PROGRAM:

#include<iostream.h>#include<conio.h>#include<process.h>class Qsort{int *a;int n;public: Qsort(int size){n=size;

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a=new int[n];}void read();void display();void qsort(int left, int right);};

void Qsort::read(){cout<<"\nEnter elements";for(int i=0;i<n;i++)cin>>a[i];}

void Qsort::display(){for(int i=0;i<n;i++)cout<<a[i]<<"\t";}

void Qsort::qsort(int left, int right){int pivot=a[left];int l=left,r=right;while(l<r){while(a[r]>=pivot&&l<r)r--;if(l!=r)a[l]=a[r];while(a[l]<=pivot&&l<r)l++;if(l!=r)a[r]=a[l];a[l]=pivot;}pivot=l;if(left<pivot)qsort(left,pivot-1);if(right>pivot)qsort(pivot+1,right);}void main(){clrscr();Qsort q(10);q.read();

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cout<<"\nBefore sorting:\n";q.display();q.qsort(0,9);cout<<"\nAfter sorting:\n";q.display();getch();}

OUTPUT:

Enter elements90 10 80 20 40 50 1 2 3 5

Before sorting:90 10 80 20 40 50 1 2 3 5

After sorting:1 2 3 5 10 20 40 50 80 90

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6) AIM: Write a program for Selection sort

PROGRAM:

#include<iostream.h>#include<conio.h>void main(){ int a[20],i,n; void selectionsort(int[],int) clrscr(); cout<<"enter number of elements:\n"; cin>>n; cout<<"enter elements"; for(i=0;i<n;i++) cin>>a[i]; selectionsort(a,n); cout<<"after sorting elements are\n"; for(i=0;i<n;i++) cout<<a[i]<<endl; getch();}void selectionsort(int x[],int n){ int i,j,temp,mp; for(i=0;i<n-1;i++) { mp=i; for(j=i+1;j<n;j++) { if(a[j]<a[mp]) mp=j; } if(i!=mp) { temp=a[i]; a[i]=a[mp]; a[mp]=temp; } } }

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OUTPUT:

Enter number of elements5Enter elements 16 12 5 47 2After sorting elements are25121647

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7) AIM: Write a program for insertion sort

PROGRAM:

#include<iostream.h>#include<conio.h>void main(){ int i,n,j,p,q; int t[100]; clrscr(); cout<<"Enter how many numbers u want to sort \n"; cin>>n; p=0; cout<<"Enter the values \n"; for(i=0;i<n;i++) cin>>t[i]; for(i=1;i<n;i++) { q=t[i]; j=i-1; do { if(t[j]>q) { t[j+1]=t[j]; j=j-1; if(j<0) break; } else break;

}while(1); t[j+1]=q;

} cout<<"the sorted order is :\n"; for(i=0;i<n;i++) cout<<t[i]<<"\n"; getch();

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}

OUTPUT:

Enter how many numbers u want to sort5Enter the values211190459the sorted order is :911214590

8)AIM: Write a program for implementation of prims algorithm PROGRAM:

#include<iostream.h>#include<conio.h>void main(){

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int min=0,pnear[10],n=7,j,p,i,k,l,min1,o; int c[100][100]; int t[100][2]; clrscr(); cout<<"Enter number of nodes:"; cin>>n; cout<<"\nEnter the cost for following edge/nIf edge is not there put:-1\n" ; for(i=0;i<n;i++) { for(j=i+1;j<n;j++) { cout<<"("<<i+1<<","<<j+1<<") :"; cin>>c[i][j]; c[j][i]=c[i][j]; cout<<"\n"; } t[i][0]=t[i][1]=c[i][i]= -1; } for(i=0;i<n;i++) pnear[i]=0; pnear[0]=-1; for(i=0;i<n-1;i++) { min1=999; for(l=0;l<n;l++) { if(pnear[l]==-1 || c[l][pnear[l]]==-1) { continue; } else { if(c[l][pnear[l]]<min1) { min1=c[l][pnear[l]]; t[i][0]=l; t[i][1]=pnear[l]; } } } min=min+min1;

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pnear[p=t[i][0]]=-1; for(j=0;j<n;j++) { o=pnear[j]; if(o!=-1 ) { if(c[j][o]==-1 || c[j][p]==-1) { if(c[j][o]==c[j][p]==-1) continue; if(c[j][o]==-1) pnear[j]=p; continue; } if(c[j][o]>c[j][p]) pnear[j]=p; } }} cout<<"\nMin cost is :"<<min; cout<<"\n the edges are:"; for(i=0;i<n;i++) { if(t[i][0]==-1) continue; cout<<"\n("<<t[i][0]+1<<","<<t[i][1]+1<<") "; } getch();}

OUTPUT:

Enter number of nodes:4

Enter the cost for following edge/nIf edge is not there put:-1(1,2) :21

(1,3) :-1

(1,4) :4

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(2,3) :4

(2,4) :-1

(3,4) :5

Min cost is :13 the edges are:(4,1)(3,4)(2,3)

9) AIM: Write a program for implementation of BFS (Breadth First Search)

PROGRAM:

#include<iostream.h>#include<conio.h>class bfs{int v,u,n,i,j,str;int gra[20][20],visited[20];public: bfs(){}void bfs1(int);void bft();void input();int adj(int,int);};void bfs::input(){cout<<"\nEnter the number of nodes\n";cin>>n;

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cout<<"\nEnter the adjcency matrix\n";for(i=1;i<=n;i++)for(j=1;j<=n;j++)cin>>gra[i][j];

}int bfs::adj(int a,int b){if(gra[a][b]==1)return 1;elsereturn 0;}void bfs::bft(){for(i=1;i<=n;i++)visited[i]=0;for(i=1;i<=n;i++)if(visited[i]==0)bfs1(i);}void bfs::bfs1(int v){int q[20],front=0,rear=0;u=v;visited[v]=1;cout<<v<<"\t";while(1){for(int w=1;w<=n;w++){if(adj(u,w)==1&&visited[w]==0){q[rear]=w;rear++;cout<<w<<"\t";visited[w]=1;}}if(front>rear)return;

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else{u=q[front];front++;}}}void main(){clrscr();bfs b;b.input();cout<<"BFT is\n";b.bft();getch();}

OUTPUT:

Enter the number of nodes3

Enter the adjcency matrix1 0 11 0 11 0 0BFT is1 3 2

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10) AIM: Write a program for implementation of DFS (Depth First Search)

PROGRAM:

#include<iostream.h>#include<conio.h>class dfs{int i,j,k,n;int gra[20][20],visited[20];public: dfs(){}void dfs1(int);void dft();void input();int adj(int,int);};void dfs::input(){cout<<"\nEnter the number of nodes\n";cin>>n;cout<<"\nEnter the adjcency matrix\n";for(i=1;i<=n;i++)for(j=1;j<=n;j++)cin>>gra[i][j];}int dfs::adj(int a,int b){if(gra[a][b]==1)return 1;elsereturn 0;}void dfs::dft(){for(i=1;i<=n;i++)visited[i]=0;for(i=1;i<=n;i++)if(visited[i]==0)dfs1(i);}void dfs::dfs1(int v)

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{int w;visited[v]=1;cout<<v<<"\t";for(w=1;w<=n;w++){if(visited[w]==0&&adj(v,w)==1){dfs1(w);}}}void main(){clrscr();dfs d;d.input();cout<<"DFT is\n";d.dft();getch();}

OUTPUT:

Enter the number of nodes4Enter the adjcency matrix1 0 1 00 1 0 11 0 1 00 0 0 1DFT is1 3 2 4 11)AIM : Write a HTML program to implement list

PROGRAM:

<html><head><title>Mega Shop</title></head>

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<body><h2>Two simple lists</h2><h3>Products</h3><ul><li>Widgets, sizes 2 to 12</li><li>ThingummyBobs for families and the single person</li></ul><h3>Deadlines</h3><ol><li>Place your orders before 4 pm for next day delivery</li><li>Order by midnight for next new year</li></ol><h3>And a definition list</h3><dl><dt><a href="example2.html">Widget</a></dt><dd>Provided in three sizes <i>small,medium,large</i>,and a range of colors.</dd><dt><a href="example2.html">Thingummybobs</a></dt><dd>Just what home needs. Now available in teal and cerise stripes for the new season.</dd></dl></body></html>

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12) AIM: Write a HTML program to implement Timetable

PROGRAM:

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<html><head><title> M.tech time table</title></head><body><h1> <center>M.tech I year I sem time table </center></h1><table border="1" align= "center"><tr> <th></th> <th>9.40AM - 11.20AM</th> <th>11.20AM - 1.00PM</th> <th>1.00PM - 2.00PM</th> <th>2.00PM - 3.40PM</th> <th>3.40PM - 5.20PM</th> </tr><tr><th>MOnday</th><td>HSN</td><td>APS</td><td rowspan="5"><center>Lunch</center></td><td>CSD</td></tr><tr><th>Tuesday</th><td>IRS</td><td>JAVA&WT</td><td colspan="5"><center>JAVA&WT lab</center></td></tr><tr><th>Wednesday</th><td>IRS</td><td>JAVA & WT</td><td>CSD</td></tr><tr><th>Thursday</th><td colspan="2"><center>APS lab</center></td><td>ADW</td></tr><tr>

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<th>Friday</th><td>APS</td><td>HSN</td><td>ADM</td></tr></table></body></html>

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OUTPUT:

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13) AIM: Write a HTML program to implement form.

PROGRAM:

<html><head><title>form creation</title></head><body><center> <form action="orderedlist.html " method="post"> <h1 align="center">Registration form</h1> Username:<input type="text" name="user"><br><br> Password:<input type="text" name="pwd"><br><br> Confirm password:<input type="text" name="pwd1"><br><br> Address:<textarea rows="2" cols="5"></textarea><br> <input type="radio" name="sex" value="male"/>Male <input type="radio" name="sex" value="female"/>Female<br> <input type="checkbox" name="vechile" value="bike"/>I have a bike<br> <input type="checkbox" name="vechile" value="car"/>I have a car<br> <input type="submit" name="submit" value="submit"> <input type="reset" name="submit" value="Reset"<br></center> </form> </body></html>

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OUTPUT:

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14) AIM: Write a HTML program to implement inline style sheets internal style sheets and external style sheets

PROGRAM:

<html><head><title>inlinestylesheets</title></head><body ><p style="color:blue;margin-left:20px ;font-family:sans-serif; font-weight:bold"> this passage has an effect of css rules supplied by p selector using style attribute</p><br><p>this passage is not under the influence of css rules specified</p></body></html>

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OUTPUT:

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internal style sheets

PROGRAM:

<html> <head> <title> internalstylesheets</title> <style type="text/css"> h1{font-family:sans-serif;color:green;text-align:center;font-size:30;} p{font-family;font-size:15;font-weight:bold;} body{background:yellow;} </style> </head><body> welcome<p>this passage has an effect of css rules supplied by p selector in head region</p><h1>hello</h1></body></html>

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OUTPUT:

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external style sheets

PROGRAM:

<html> <head> <title> external stylesheets</title> <link rel="stylesheets" type="text/css" href="C:\Documents and Settings\Desktop\labprograms\rules.css"> </head><body> welcome<p>this passage has an effect of css rules supplied by p selector in head region</p><h1>hello</h1></body></html>

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OUTPUT:

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15)AIM: Write a JAVASCRIPT program to implement calculator

PROGRAM:

<html><head><title> Calculator </title><script type="text/javascript">var a,b,c;function read(){

a = parseInt(document.getElementById('num1').value);b = parseInt(document.getElementById('num2').value);verify();

}function verify(){

if(a<0 || b<0){

alert("Please enter positive numbers only");clear();exit();

}

}function add(){

read();c = a+b;document.getElementById('res').value=c;

}function sub(){

read();c = a-b;document.getElementById('res').value=c;

}function mul(){

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read();c = a*b;document.getElementById('res').value=c;

}function div(){

read();c = a/b;document.getElementById('res').value=c;

}function mod(){

read();c = a%b;document.getElementById('res').value=c;

}function clear(){

document.getElementById('num1').value="";document.getElementById('num2').value="";document.getElementById('res').value="";

}</script></head><body onload="clear()">

<form method="post">First Number : <input type='text' id='num1' size='5'/>

<br>Second Number : <input type='text' id='num2' size='5'/>

<br>Result : <input type='text' id='res' size='5' readonly />

<br><input type='button' onclick='add()' value='Add' /><input type='button' onclick='sub()' value='Sub' /><input type='button' onclick='mul()' value='Mul' /><input type='button' onclick='div()' value='Div' /><input type='button' onclick='mod()' value='Mod' />

</form></body>

</html>

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OUTPUT:

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16) AIM: Write a JAVASCRIPT program to check given number is prime or not

PROGRAM:

<html><head><title>Prime Number </title><script type="text/javascript">var n;

function verify(){

if(n<0){

alert("Please enter positive number only");clear();exit();

}

}function prime(){

n = parseInt(document.getElementById('num1').value);verify();var count=0;for(i=2; i<n; i++){

if(n%i==0)count++;

}if(count==0)

alert("Given number is prime");else

alert("Given number is not prime");}

function clear()

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{document.getElementById('num1').value="";document.getElementById('res').value="";

}</script></head><body onload="clear()">

<form method="post">Number : <input type='text' id='num1' size='5'/> <br><input type='button' onclick='prime()' value='Check

Prime?' />

</form></body>

</html>

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OUTPUT:

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17) AIM: Write a Servlet program to access details from a form PROGRAM:

studentform.html

<html><head><title>student form</title></head><body><center><form method="get" action="/staticform/student">enter student name: <input type=text name=sname><br><br>enter student age: <input type=text name=sage><br><br><input type="submit" name=send value="send"></form></center></body>

StudentEx.java

import java.io.*;import javax.servlet.*;import javax.servlet.http.*;public class StudentEx extends HttpServlet{

public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException

{res.setContentType("text/html");PrintWriter k = res.getWriter();String name = req.getParameter("sname");String age = req.getParameter("sage");k.println("<body bgcolor = cyan>");k.println("Hello: "+ name );k.println("your age:"+age);k.println("</body>");

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}

}

web.xml

<web-app><servlet><servlet-name>first</servlet-name><servlet-class>StudentEx</servlet-class></servlet><servlet-mapping><servlet-name>first</servlet-name><url-pattern>/student</url-pattern></servlet-mapping></web-app>

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OUTPUT:

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18)AIM: JDBC Standalone application to interact with database and store the employee details. PROGRAM:import java.sql.*;import java.io.*;

public class jdbc_1 {public static void main(String s[]) throws Exception{

/* Type 1 driver

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");Connecttion con=DriverManager.getConnection("jdbc:odbc:mydsn","scott","tiger");

*/

Class.forName("com.mysql.jdbc.Driver");Connection con=

DriverManager.getConnection("jdbc:mysql://localhost:3306/kiran","root","password");

String query="insert into employee values(?,?,?)";

// Taking input from console

DataInputStream dis=new DataInputStream(System.in);System.out.println("Enter Employee Name");String ename=dis.readLine();System.out.println("Enter Employee Number");String eno=dis.readLine();System.out.println("Enter Employee salary");int sal=Integer.parseInt(dis.readLine());

// Getting a Statement

PreparedStatement ps=con.prepareStatement(query);ps.setString(1,ename);ps.setString(2,eno);ps.setInt(3,sal);

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//Execute Query

int i=ps.executeUpdate();System.out.println("Query Executed Successfully into Employee

Table... no of records inserted are "+i);con.close();

}}

Data Base Script

Drop table Employee;

create table employee(ename varchar(20), eno varchar(20),sal varchar(10));

OUTPUT:

19)AIM:- The Web Application takes the user details from the user, interact with the database and checks with the database user details. If user details exists login to site else display login page again.

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PROGRAM:<html><body><center><h1>MY Company</h1><br><br><br>

<form name="form1" method="post" action="login"><table><tr>

<td><strong>User Name</strong></td><td><input type="text" name="uname"></td>

</tr><tr>

<td><strong>Password</strong></td><td><input type="Password" name="pass"></td>

</tr><tr>

<td> </td><td> </td>

</tr>

<tr><td colspan="2" align="center"><input type="submit" name="Submit" value="Login"></td><td align="center"><input type="reset" name="Submit2" value="Reset"></tr></table>

</form></center></body></html>

import java.sql.*;

public class DBClass {public boolean validate(String uname,String pass){

try{/* Type 1 driver

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

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Connecttion con=DriverManager.getConnection("jdbc:odbc:mydsn","scott","tiger");

*/Class.forName("com.mysql.jdbc.Driver");Connection con=

DriverManager.getConnection("jdbc:mysql://localhost:3306/kiran","root","password");

Statement st= con.createStatement();ResultSet rs=st.executeQuery("select * from userdetails

where uname=\'" +uname+ "\'and pass=\'" +pass+ "\' ");return rs.next();

} catch(Exception e){e.printStackTrace();

}return false;

}}

import java.io.*;import javax.servlet.*;import javax.servlet.http.*;

public class LoginServlet extends HttpServlet {

DBClass ud;

public void init(){ud=new DBClass();}

public void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException {

response.setContentType("text/html");PrintWriter out=response.getWriter();

String uname=request.getParameter("uname");String pass=request.getParameter("pass");ud=new DBClass();if(ud.validate(uname,pass)){

out.println("<h3>Welcome, "+uname+"<h3><br/>");

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out.println(" You have logged into the Site");

}else{

out.println("<h2>Your Details not found please login with valid details...</h2>");

out.println("</body></html>");}

}

}

Web.xml:-

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE web-app PUBLIC '-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN' 'http://java.sun.com/dtd/web-app_2_3.dtd'><web-app> <servlet> <servlet-name>LoginServlet</servlet-name> <servlet-class>LoginServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>LoginServlet</servlet-name> <url-pattern>/login</url-pattern> </servlet-mapping> <welcome-file-list>

<welcome-file>Login.html</welcome-file> </welcome-file-list></web-app>

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20)AIM: JSP Pages to take input from the User redirect to Another JSP to Print name and Date

PROGRAM:

<%@page import="java.util.*"%><html><head><title>Welcome</title></head><body><%=new Date().toString()%><hr><h2>Welcome</h2>

<form action="show.jsp">User Name

<input type=text name="name"><br><br>City<input type=text name=city><br><br><input type="submit" name= "submit "value="submit"><input type="reset" name="Submit2" value="Reset">

</form></center></body>

Show.jsp

<%@page import="java.util.*"%><html><head><title>Welcome</title></head>

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<body><%=new Date().toString()%><hr>Hello<b><%=request.getParameter("name")%></b><br><br>Your City is <b><%=request.getParameter("city")%></b><br><br><a href="user.jsp">back</a></form></center></body>

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21)AIM:Web Application take Student detail from the User and Displays the Class . if student marks are >=60 then First Class if >=50 second class if less then 50% then fail.

PROGRAM:

Student Form

<html><head><title>Student Form</title></head><body><center><h2>Enter Student Details</h2><form method="post" action="student">

Student Name: <input type=text name=sname><br><br>

Student Age: <input type=text name=sage><br><br>

Sub1 marks <input type=text name=s1><br><br>

Sub2 marks<input type=text name=s2><br><br>Sub3 marks

<input type=text name=s3><br><br>

<input type="submit" name= "submit "value="submit"><input type="reset" name="Submit2" value="Reset">

</form></center></body>

StudentEx.java

import java.io.*;import javax.servlet.*;import javax.servlet.http.*;

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public class StudentEx extends HttpServlet{

public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException

{res.setContentType("text/html");PrintWriter out = res.getWriter();String name = req.getParameter("sname");String age = req.getParameter("sage");int percent=0;int s1 = Integer.parseInt(req.getParameter("s1"));int s2 = Integer.parseInt(req.getParameter("s2"));int s3 = Integer.parseInt(req.getParameter("s3"));

int total=s1+s2+s3;percent=(total*100)/300;String msg=" ";if(percent>=100)msg="Enter Valid marks";else if(percent>=60)msg="Good Work You Got First Class";else if(percent>=50)msg=" You Got second Class";elsemsg="Oh You Failed... Work Hard Next time..";

out.println("<html>");out.println("<body bgcolor = cyan>");out.println("<h1>Hello: "+ name+"</h1>" );out.println("<h2>"+msg+"<h2>");out.println("</body>");out.println("</html>");

}

}

Web.xml

<web-app> <servlet>

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<servlet-name>s1</servlet-name> <servlet-class>StudentEx</servlet-class> </servlet> <servlet-mapping> <servlet-name>s1</servlet-name> <url-pattern>/student</url-pattern> </servlet-mapping> <welcome-file-list>

<welcome-file>studentform.html</welcome-file> </welcome-file-list> </web-app>

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