Week 11 : Programming Assignment 1

Due on 2023-10-12, 23:59 IST

Complete the code segment to insert the following data using prepared statement in the existing table ‘PLAYERS’.

Column	UID	First_Name	Last_Name	Age
Row 1	1	Ram	Gopal	26
Row 2	2	John	Mayer	22

Your last recorded submission was on 2023-10-07, 15:18 IST

Select the Language for this assignment.

File name for this program :

import java.sql.*;
import java.lang.*;
public class InsertData {
    public static void main(String args[]) {
        try {
              Connection conn = null;
              Statement stmt = null;
              String DB_URL = "jdbc:sqlite:/tempfs/db";
              System.setProperty("org.sqlite.tmpdir", "/tempfs");
            
              // Open a connection
              conn = DriverManager.getConnection(DB_URL);
              stmt = conn.createStatement();

~~~THERE IS SOME INVISIBLE CODE HERE~~~

String query = " insert into PLAYERS (UID, first_name, last_name, age)"  + " values (?, ?, ?, ?)";
 
            PreparedStatement preparedStmt = conn.prepareStatement(query);
            preparedStmt.setInt (1, 1);
            preparedStmt.setString (2, "Ram");
            preparedStmt.setString (3, "Gopal");
            preparedStmt.setInt(4, 26);
 
            preparedStmt.execute();
      
            preparedStmt.setInt (1, 2);
            preparedStmt.setString (2, "John");
            preparedStmt.setString (3, "Mayer");
            preparedStmt.setInt(4, 22);
 
            preparedStmt.execute();

~~~THERE IS SOME INVISIBLE CODE HERE~~~

}catch(Exception e){ System.out.println(e);}  
    }  
}

You may submit any number of times before the due date. The final submission will be considered for grading.

This assignment has Public Test cases. Please click on "Compile & Run" button to see the status of Public test cases. Assignment will be evaluated only after submitting using Submit button below. If you only save as or compile and run the Program , your assignment will not be graded and you will not see your score after the deadline.

Private Test cases used for Evaluation	Status
Test Case 1	Passed

Week 11 : Programming Assignment 2

Due on 2023-10-12, 23:59 IST

Write the required code in order to update the following data in the table ‘PLAYERS’.

Column	UID	First_Name	Last_Name	Age
From	1	Ram	Gopal	26
To	1	Rama	Gopala	24

Your last recorded submission was on 2023-10-07, 15:23 IST

Select the Language for this assignment.

File name for this program :

import java.sql.*;
import java.lang.*;
public class UpdateData {
    public static void main(String args[]) {
        try {
              Connection conn = null;
              Statement stmt = null;
              String DB_URL = "jdbc:sqlite:/tempfs/db";
              System.setProperty("org.sqlite.tmpdir", "/tempfs");
              String query="";
            
              // Open a connection
              conn = DriverManager.getConnection(DB_URL);
              stmt = conn.createStatement();

~~~THERE IS SOME INVISIBLE CODE HERE~~~

query = " UPDATE Players SET First_name ='Rama',Last_name = 'Gopala',Age = 24  WHERE UID=1;";
stmt.executeUpdate(query);

~~~THERE IS SOME INVISIBLE CODE HERE~~~

}
                catch(Exception e){ System.out.println(e);}  
    }  
}

You may submit any number of times before the due date. The final submission will be considered for grading.

Private Test cases used for Evaluation	Status
Test Case 1	Passed

Week 11 : Programming Assignment 3

Due on 2023-10-12, 23:59 IST

Write the appropriate code in order to delete the following data in the table ‘PLAYERS’.

Column	UID	First_Name	Last_Name	Age
Delete	1	Rama	Gopala	24

Your last recorded submission was on 2023-10-07, 15:25 IST

Select the Language for this assignment.

File name for this program :

import java.sql.*;
import java.lang.*;
public class DeleteData {
    public static void main(String args[]) {
        try {
              Connection conn = null;
              Statement stmt = null;
              String DB_URL = "jdbc:sqlite:/tempfs/db";
              System.setProperty("org.sqlite.tmpdir", "/tempfs");
              String query="";
            
              // Open a connection
              conn = DriverManager.getConnection(DB_URL);
              stmt = conn.createStatement();

~~~THERE IS SOME INVISIBLE CODE HERE~~~

stmt.executeUpdate("DELETE FROM Players WHERE UID = 1;");

~~~THERE IS SOME INVISIBLE CODE HERE~~~

}
                catch(Exception e){ System.out.println(e);}  
    }  
}

You may submit any number of times before the due date. The final submission will be considered for grading.

Private Test cases used for Evaluation	Status
Test Case 1	Passed

Week 11 : Programming Assignment 4

Due on 2023-10-12, 23:59 IST

Complete the following program to calculate the average age of the players in the table ‘PLAYERS’.

Structure of Table 'PLAYERS' is given below:

Column	UID	First_Name	Last_Name	Age
Type	Integer	Varchar (45)	Varchar (45)	Integer

Your last recorded submission was on 2023-10-07, 15:39 IST

Select the Language for this assignment.

File name for this program :

import java.sql.*;
import java.lang.*;
public class CalAverage {
    public static void main(String args[]) {
        try {
              Connection conn = null;
              Statement stmt = null;
              String DB_URL = "jdbc:sqlite:/tempfs/db";
              System.setProperty("org.sqlite.tmpdir", "/tempfs");
              String query="";
              // Open a connection
              conn = DriverManager.getConnection(DB_URL);
              stmt = conn.createStatement();

~~~THERE IS SOME INVISIBLE CODE HERE~~~

ResultSet rs = stmt.executeQuery("SELECT * FROM players;");
            int count=0,total=0;
            while(rs.next()){
                count++;
                total = total + Integer.parseInt(rs.getString(4));
            }
            
//Output
System.out.println("Average age of players is " +(total/count));
conn.close();

~~~THERE IS SOME INVISIBLE CODE HERE~~~

}
                catch(Exception e){ System.out.println(e);}  
    }  
}

You may submit any number of times before the due date. The final submission will be considered for grading.

Private Test cases used for Evaluation	Status
Test Case 1	Passed

Week 11 : Programming Assignment 5

Due on 2023-10-12, 23:59 IST

Complete the code segment to drop the table named ‘PLAYERS’.

Your last recorded submission was on 2023-10-07, 16:05 IST

Select the Language for this assignment.

File name for this program :

import java.sql.*;
import java.lang.*;
public class DropTable {
    public static void main(String args[]) {
        try {
              Connection conn = null;
              Statement stmt = null;
              String DB_URL = "jdbc:sqlite:/tempfs/db";
              System.setProperty("org.sqlite.tmpdir", "/tempfs");
              String query="";
            
              // Open a connection
              conn = DriverManager.getConnection(DB_URL);
              stmt = conn.createStatement();

~~~THERE IS SOME INVISIBLE CODE HERE~~~

// Write the SQL command to drop a table
    query = "DROP TABLE players;";
 
// Execute the SQL command to drop a table
    stmt.executeUpdate(query);

~~~THERE IS SOME INVISIBLE CODE HERE~~~

}
                catch(Exception e){ System.out.println(e);}  
    }  
}

You may submit any number of times before the due date. The final submission will be considered for grading.

Private Test cases used for Evaluation	Status
Test Case 1	Passed

NETAJI

NPTEL Java Programming Week 11 : Programming Assignment 1-5 OCt-2023

Week 11 : Programming Assignment 1

Week 11 : Programming Assignment 2

Week 11 : Programming Assignment 3

Week 11 : Programming Assignment 4

Week 11 : Programming Assignment 5

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