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; }
The Touchable Shop POS (Point of Sale) system is a sophisticated software solution developed using…
Creating a responsive login form is a crucial skill for any web developer. In this…
In this tutorial will teach Laravel 12 CRUD API by step. Laravel 10 CRUD Application …
In this lesson we talk about laravel 12 image uploading and display the image step…
In this tutorial will teach Laravel 12 CRUD Application step by step. Laravel 12 CRUD…
Conditional statements in Python allow us to control the flow of execution based on conditions.…