Java Programs and JSP Applications for Students: 2021

Wednesday 29 December 2021

8. Write an HTML and JSP program to accept Feedback from the delegates and save the same into MySQL database.

<html>

<head>

<title>Seminar Feedback</title>

</head>

<body bgcolor=gray text=yellow>

<h3>Seminar Feedback Form</h3>

<form action="Prog8.jsp" method=POST>

<table border=3>

<tr align=left>

<th>Delegate Name:</th> <th><input type=text name=dname></th>

</tr>

<tr align=left><th>Delegate Type:</th>

<th>

<select name=dtype>

<option>Staff</option>

<option>Student</option>

</select></th></tr>

<tr align=left><th>Designation:</th>

<th><input type=text value=Student name=desig> </th></tr>

<tr align=left><th>Department:</th>

<th><input type=text name=dept></th></tr>

<tr align=left><th>Address:</th>

<th><textarea name=address></textarea></th></tr>

<tr align=left><th>Phone:</th>

<th><input type=text name=phone></th></tr>

<tr align=center><th colspan=2>Feedback on Seminar</th></tr>

<tr align=left>

<th>How was the content of the Seminar?</th>

<th><select name=q1><option>Excellent</option>

<option>Good</option><option>Satisfactory</option>

</select></th></tr>

<tr align=left>

<th>How would you rate the organization of the Event?</th>

<th>

<select name=q2><option>Excellent</option>

<option>Good</option><option>Satisfactory</option>

</select></th></tr>

<tr align=left>

<th>Did the event meet your Expectations?</th>

<th><select name=q3><option>Yes<option>No</select></th></tr>

<tr align=left>

<th>Would you say the event was Interactive?</th><th>

<select name=q4><option>Yes<option>No</select></th></tr>

<tr align=left>

<th>Overall, how satisfied were you with the event?</th>

<th><select name=q5><option>Very Satisfied<option>Satisfied

<option>Neutral</select></th></tr>

<tr align=center>

<th><input type=Submit value=Submit></th>

<th><input type=reset value=Reset></th></tr>

</table>

</form>

</body>

</html>

<html>

<head>

<title>Seminar Feedback Form</title>

<%@page import="java.util.*, java.sql.*, java.lang.*" %>

</head>

<body>

try{

String dname=request.getParameter("dname");

String dtype=request.getParameter("dtype");

String desig=request.getParameter("desig");

String dept=request.getParameter("dept");

String address=request.getParameter("address");

int phone=Integer.parseInt(request.getParameter("phone"));

String q1=request.getParameter("q1");

String q2=request.getParameter("q2");

String q3=request.getParameter("q3");

String q4=request.getParameter("q4");

String q5=request.getParameter("q5");

Class.forName("com.mysql.jdbc.Driver");

Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","");

Statement st=con.createStatement();

out.println("<h3>Data Saved Successfully!</h3>");

String s="insert into prog8 values('"+dname+"','"+dtype+"','"+desig+"','"+dept+"','"+address+"',"+phone+",'"+q1+"','"+q2+"','"+q3+"','"+q4+"','"+q5+"');";

st.executeUpdate(s);

}

catch(Exception e)

{

//out.println(e);

out.println("<font color=red size=5>Enter Valid

Input!</font>");

}

</body>

</html>

Wednesday 15 December 2021

7. HTML Program to read Placement details of students & JSP Program to store the same in MySQL Database.

<html>

<head>

<title>Student Information</title>

</head>

<body>

<h3>Enter Student Details:</h3>

<form action="Prog7.jsp" method="POST" >

<table >

<tr><td>Name:</td><td><input type="text" name="sname"></td></tr>

<tr><td>Register Number:</td><td><input type="text" name="regno"></td></tr>

<tr><td>Course:</td><td> <select name="course">

<option >BCA</option>

<option >BSc</option>

<option >BA</option>

</select> </td></tr>

<tr><td>Combination:</td><td> <select name="comb">

<option >Computer Applications</option>

<option >PMCs</option>

<option >EMCs</option>

<option >HSP</option>

<option >HEK</option>

</select> </td></tr>

<tr><td>Placement Mode:</td><td> <select name="mode">

<option >OnCampus</option>

<option >OffCampus</option>

</select> </td></tr>

<tr><td>Name of Company:</td><td><input type="text" name="cname"></td></tr>

<tr><td>Employer Type:</td><td> <select name="etype">

<option >Private</option>

<option >Government</option>

</select> </td></tr>

<tr><td>Selection Date:</td><td><input type="text" name="sdate">[yyyy-mm-dd]</td></tr>

<tr><td>Package:</td><td><input type="text" name="pack"></td></tr>

<tr><td><input type="submit" value="Save in Database" ></td>

<td><input type="reset" value="Reset" ></td></tr>

</table>

</form>

</body>

</html>

<html>

<head>

<title>Student Information</title>

<%@page import="java.sql.*,java.util.*"%>

</head>

<body>

try

{

String sname=request.getParameter("sname");

String regno=request.getParameter("regno");

String course=request.getParameter("course");

String comb=request.getParameter("comb");

String mode=request.getParameter("mode");

String cname=request.getParameter("cname");

String etype=request.getParameter("etype");

String sdate=request.getParameter("sdate");

int pack=Integer.parseInt(request.getParameter("pack"));

Class.forName("com.mysql.jdbc.Driver");

Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","");

Statement st=con.createStatement();

out.println("<h3>Data Saved Successfully!</h3>");

String s="insert into prog7 values('"+sname+"','"+regno

+"','"+course+"','"+comb+"','"+mode+"','"+cname+"','"+etype+"','"+sdate+"',"+pack+");";

st.executeUpdate(s);

}

catch(Exception e)

{

//out.println("Insertion of data failed!");

out.println("<H3>Enter Valid Input!</H3>");

}

</body>

</html>

10. C Program to perform addition and subtraction of Matrices .

/*10. C Program to perform addition and subtraction of Matrices */

#include<stdio.h>

void main()

{

int a[10][10],b[10][10],add[10][10],sub[10][10],i,j,m,n;

clrscr();

printf("Enter the order of matrix\n");

scanf("%d%d",&m,&n);

printf("Enter the elements of first matrix:\n");

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

{

for(j=0;j<n;j++)

{

scanf("%d",&a[i][j]);

}

printf("Enter the elements of second matrix:\n");

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

{

for(j=0;j<n;j++)

{

scanf("%d",&b[i][j]);

}

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

{

for(j=0;j<n;j++)

{

add[i][j]=a[i][j]+b[i][j];

sub[i][j]=a[i][j]-b[i][j];

}

printf("Matrix Addition:\n");

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

{

for(j=0;j<n;j++)

{

printf("%d\t",add[i][j]);

}

printf("\n");

}

printf("Matrix Subtraction:\n");

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

{

for(j=0;j<n;j++)

{

printf("%d\t",sub[i][j]);

}

printf("\n");

}

getch();

}

9. Write a C Program to remove Duplicate Element in a single dimensional Array.

/*9. Write a C Program to remove Duplicate Element in a single dimensional Array.*/

#include <stdio.h>

void main()

{

int arr[20]; // Declare an array of size 20

int size;

int i, j, k; // Loop control variables

clrscr();

printf("Enter size of the array:");

scanf("%d", &size); // Read size of the array

printf("Enter elements in array:\n");

for(i=0; i<size; i++) // Read array elements

{

scanf("%d", &arr[i]);

}

//Find duplicate elements in the array

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

{

for(j=i+1; j<size; j++)

{

// Check for duplicate elements

if(arr[i] == arr[j])

{

// Delete the current duplicate element

for(k=j; k < size - 1; k++)

{

arr[k] = arr[k + 1];

}

// Decrement size after removing duplicate element

size--;

j--;

}

//Display array after deleting duplicate elements

printf("\nArray elements after deleting duplicates: ");

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

{

printf("%d\t", arr[i]);

}

getch();

}

8. Write a C program to read marks scored in 3 subjects by n students and find the average of marks and result (Demonstration of single dimensional array)

/* 8. Write a C program to read marks scored in 3 subjects by n students and find the average of marks and result (Demonstration of single dimensional array) */

#include<stdio.h>

void main()

{

int sub1[10],sub2[10],sub3[10],total[10],avg[10],n,i;

printf("Enter no of students:");

scanf("%d",&n);

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

{

printf("Enter the marks of Student-%d:\n",i+1);

scanf("%d",&sub1[i]);

scanf("%d",&sub2[i]);

scanf("%d",&sub3[i]);

total[i]=sub1[i]+sub2[i]+sub3[i];

avg[i]=total[i]/n;

}

printf("Results are as follows:\n");

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

{

printf("Student-%d is as follows:\n",i+1);

if((total[i]*100/300)>=70)

printf("Distinction\n");

else if((total[i]*100/300)>=60)

printf("First Class\n");

else if((total[i]*100/300)>=50)

printf("Second Class\n");

else if((total[i]*100/300)>=40)

printf("Pass\n");

else

printf("Fail\n");

}

getch();

}

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Java Programs and JSP Applications for Students

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Wednesday 29 December 2021

8. Write an HTML and JSP program to accept Feedback from the delegates and save the same into MySQL database.

Wednesday 15 December 2021

7. HTML Program to read Placement details of students & JSP Program to store the same in MySQL Database.

10. C Program to perform addition and subtraction of Matrices .

9. Write a C Program to remove Duplicate Element in a single dimensional Array.

8. Write a C program to read marks scored in 3 subjects by n students and find the average of marks and result (Demonstration of single dimensional array)

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