In this tutorials will teach you how to calculate student marks using OOP concepts. This is an important for developing a java projects. There are many students who struggling with this area. So that I bring this article for all to clear the doubts.
class std { public int cid { get; set; } public string stname { get; set; } public string course { get; set; } public string fee { get; set; } public void reg(string name, string course, string fee) { SqlConnection con = new SqlConnection("server =.; initial catalog=testdb; User ID=sa; Password=123"); string sql = "insert into std (st_name,course,fee)values('" + name + "','" + course + "', '" + fee + "'); select @@identity;"; con.Open(); SqlCommand cm = new SqlCommand(sql, con); int c = int.Parse(cm.ExecuteScalar().ToString()); con.Close(); } public List<std> get_all_student() { List<std> li = new List<std>(); SqlConnection con = new SqlConnection("server=.; initial catalog=testdb; User Id=sa; password=123;"); string sql = "select * from std"; con.Open(); SqlCommand cmd = new SqlCommand(sql, con); SqlDataReader dr = cmd.ExecuteReader(); while (dr.Read()) { std s = new std(); s.cid = (int)dr["id"]; s.stname = dr["st_name"].ToString(); s.course = dr["course"].ToString(); s.fee = dr["fee"].ToString(); li.Add(s); } return li; }}
private void button1_Click(object sender, EventArgs e) { std ss = new std(); ss.reg(txtName.Text, txtCourse.Text, txtFee.Text); MessageBox.Show("Record Addeddd"); } private void button3_Click(object sender, EventArgs e) { std ss = new std(); List<std> cl = ss.get_all_student(); dataGridView1.DataSource = cl; }
In this tutorial will teach Laravel 11 Api MVC with Repository Pattern Crud Application step…
In this tutorial will teach Laravel 11 CRUD Application step by step. Laravel 11 CRUD…
in this tutorials we will be talk about how to make a times table in…
In this tutorials will teach How to add two numbers in Laravel 10. (more…)
In this tutorial, we will teach the process of building a full-stack application using Node.js,…
In this tutorial, we will explin you through the process of building a Hospital Management…