Department of Computer Science and Engineering, SMVEC
Ex. No. 1 (a) Simple Program: Factorial of a given Number Date:
Aim:
To write a simple JAVA program for finding factorial of a given number.
Algorithm:
Step1: Start
Step2: Read input of n value
Step3: f=1
Step4: i=1
Step5: for i=1 to n
Step6: f = f * i
Step7: Next i
Step8: Print output factorial
Step9: Stop
Program:
//Program for finding Factorial of a given number
import java.io.DataInputStream;
import java.io.IOException;
public class forloopex1 {
public static void main(String ar[])throws IOException
{
DataInputStream di = new DataInputStream(System.in);
int i,n;
System.out.println("Enter value of n");
n= Integer.parseInt(di.readLine());
int f=1;
for(i=1;i<=n;i++)
{
f = f * i;
}
System.out.println("The Factorial = "+f);
}
}
Input / Output:
Enter value of n
5
The Factorial = 120
Result:
Thus the program for finding factorial of a given number is successfully executed.
1
Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Ex. No. 1 (b) Simple Program: Check prime of not Date:
Aim:
To write a simple JAVA program for checking whether a given number is prime or not.
Algorithm:
Program:
//Program for finding checking prime or not
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Input / Output:
Particulars Max Mark Mark Secured
Program and Execution 15
Viva 10
Total 25
Result:
3
Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Ex. No. 2 (a) Implementation of Classes and Objects Date:
Aim:
To write a JAVA program for the implementation of Classes and Objects.
Algorithm:
Step1: Start
Step2: Create a class
Step3: Create a method getdata()
Step4: Create another method printdata()
Step5: Close the class
Step6: Open the main class and main() method
Step7: Create object for the class
Step8: Call getdata() and printdata() using the object
Step9: Close the main program
Step10: Stop
Program:
//Program for the implementation of Classes and Objects
import java.io.*;
class addproc
{
int a,b;
void getdata()throws IOException
{
DataInputStream di = new DataInputStream(System.in);
System.out.println("Enter a,b values");
a = Integer.parseInt(di.readLine());
b = Integer.parseInt(di.readLine());
}
void printresult()
{
System.out.println("The addition = "+(a+b));
}
}
class classex1
{
public static void main(String ar[])throws IOException
{
addproc a1 = new addproc();
a1.getdata();
a1.printresult();
}
}
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Input / Output:
Enter a, b values
100
200
The addition = 300
Result:
Thus the program for the implementation of Class and Object is successfully executed.
5
Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Ex. No. 2 (b) Implementation of Classes and Objects Date:
using Constructors
Aim:
To write a JAVA program for the implementation of Classes and Objects using
Constructors.
Algorithm:
Program:
//Program for the implementation of Classes and Objects using Constructors
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Input / Output:
Particulars Max Mark Mark Secured
Program and Execution 15
Viva 10
Total 25
Result:
7
Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Ex. No. 3 (a) Implementation of Single Inheritance Date:
Aim:
To write a JAVA program for the implementation of Single Inheritance.
Algorithm:
Step1: Start
Step2: Create B class
Step3: Create a method getA()
Step4: Close the A class
Step5: Create another class B
Step6: Create a method getB()
Step7: Create another method printB()
Step8: Close the B class
Step9: Open the main class and main() method
Step10: Create object for the B class
Step11: Call getA() and printB() using the object
Step12: Close the main program
Step13: Stop
Program:
//Program for the implementation of Single Inheritance
class A
{
int a;
A()
{
a=25;
}
void getA()
{
a=50;
}
}
class B extends A
{
int b;
B()
{
b = 100;
}
void getB()
{
b= 150;
}
void printB()
{
b= a+b;
System.out.println(b);
}
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
class single1
{
public static void main(String ar[])
{
B b1 = new B();
b1.getA();
b1.printB();
}
}
Input / Output:
150
Result:
Thus the program for the implementation of Single Inheritance is successfully executed.
9
Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Ex. No. 3 (b) Implementation of Hierarchical Inheritance Date:
Aim:
To write a JAVA program for the implementation of Hierarchical Inheritance.
Algorithm:
Program:
//Program for the implementation of Hierarchical Inheritance
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Input / Output:
Particulars Max Mark Mark Secured
Program and Execution 15
Viva 10
Total 25
Result:
12
Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Implementation of Multithreading
Ex. No. 4 (a) Date:
using Thread class
Aim:
To write a JAVA program for the implementation of Multithreading using Thread Class.
Algorithm:
Step1: Start
Step2: Create threadex2 class and inherit from Thread class
Step3: Create a method run() which is the actual class
Step4: Close the threadex2 class
Step5: Open the main class and main() method
Step9: Create 3 objects for the threadex2 class
Step10: Close the main program
Step11: Stop
Program:
//Program for the implementation of Multi Threading using Thread class
class threadex2 extends Thread
{ String s;
threadex2(String s)
{
this.s = s;
start();
}
public void run()
{
for(int i=1;i<=3;i++)
{
System.out.println(s+" - "+i);
try {
Thread.sleep(200);
}catch(InterruptedException ie) {System.out.println("excep in thread");}
} } }
class multithreadclass1
{
public static void main(String ar[])
{
threadex2 t1 = new threadex2("ONE");
threadex2 t2 = new threadex2("TWO");
threadex2 t3 = new threadex2("THREE");
for(int i=1;i<=3;i++)
{
System.out.println("Main - "+i);
try {
Thread.sleep(400);
}catch(InterruptedException ie) {System.out.println("excep in main");}
} } }
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Input / Output:
Main – 1
ONE – 1
TWO – 1
THREE – 1
Main – 2
TWO – 2
ONE – 2
THREE – 2
Main – 3
ONE – 3
THREE – 3
TWO - 3
Result:
Thus the program for the implementation of Multi Threading using Thread class is successfully
executed.
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Implementation of Multithreading
Ex. No. 4 (b) Date:
using Runnable Interface
Aim:
To write a JAVA program for the implementation of Multithreading using Runnable
interface.
Algorithm:
Program:
//Program for the implementation of Multi Threading using Runnable Interface.
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Input / Output:
Particulars Max Mark Mark Secured
Program and Execution 15
Viva 10
Total 25
Result:
16
Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Ex. No. 5 (a) Implementation of Collection Framework using Date:
LinkedList class
Aim:
To write a JAVA program for the implementation of Collection Framework using LinkedList
class.
Algorithm:
Step1: Start of first program
Step2: Create an object for LinkedList class
Step3: Add the elements using add() method
Step4: Print all the elements using Iterator.next() method.
Step5: Stop
Step9: Start of second program
Step10: Create an object for LinkedList class
Step11: Call all the methods supported by LinkedList object
Step12:Stop
Program:
//1. Program for the implementation of LinkedList using Collection Framework
import java.util.*;
public class collLinkedList1
{
public static void main(String args[])
{
LinkedList<String> al=new LinkedList<String>();
al.add("Ravi");
al.add("Vijay");
al.add("Ravi");
al.add("Ajay");
Iterator<String> itr=al.iterator();
while(itr.hasNext())
{
System.out.println(itr.next());
}
}
}
//2. Program for the implementation of methods in Linked List.
import java.util.*;
class collListmethods1 {
public static void main(String[] args) {
// Creating list using the LinkedList class
List<Integer> numbers = new LinkedList<>();
// Add elements to the list
numbers.add(100);
numbers.add(50);
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
numbers.add(25);
numbers.add(7);
numbers.add(22);
System.out.println("List: " + numbers);
// Access element from the list
int number = numbers.get(2);
System.out.println("Accessed Element: " + number);
// Using the indexOf() method
int index = numbers.indexOf(2);
System.out.println("Position of 2 is " + (index+1));
// Remove element from the list
int removedNumber = numbers.remove(1);
System.out.println("Removed Element: " + removedNumber);
numbers.set(2, 10);
System.out.println("List: " + numbers);
System.out.println("Length of the List = "+numbers.size());
boolean res = numbers.contains(50)?true:false;
System.out.println(res);
numbers.sort(null);
System.out.println("Sorted List: " + numbers);
}
}
Input / Output:
1. Output of the first program:
Entered Elements
Ravi
Vijay
Ravi
Ajay
2. Output of the Second program:
List: [100, 50, 25, 7, 22]
Accessed Element: 25
Position of 2 is 0
Removed Element: 50
List: [100, 25, 10, 22]
Length of the List = 4
false
Sorted List: [10, 22, 25, 100]
Result:
Thus the program for the implementation of LinkedList using Collection Framework.
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Ex. No. 5 (b) Implementation of Collection Framework using Date:
TreeSet class
Aim:
To write a JAVA program for the implementation of Collection Framework using TreeSet
class.
Algorithm:
Program:
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Input / Output:
Particulars Max Mark Mark Secured
Program and Execution 15
Viva 10
Total 25
Result:
20
Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Ex. No. 6 (a) Implementation of Simple Application using Date:
JDBC for Student Database
Aim:
To write a JAVA program for the implementation of simple Application using MySql-Java
connectivity for Student Database.
Algorithm:
Step1: Start
Step2: Create forname() with Java-MySql Driver
Step3: Create a method getConnection() with name of the Database and password
Step4: Create an object for Statement class using con.createStatement()
Step5: Create an object for ResultSet with executeQuery() method
Step9: Print all the records from the ResultSet using next() method
Step10: Close the main program
Step11: Stop
Program:
//Program for the implementation of MySQL – JAVA connectivity.
import java.sql.*;
public class dbex1{
public static void main(String args[])
{
try{
Class.forName("com.mysql.cj.jdbc.Driver");
Connection
con=DriverManager.getConnection("jdbc:mysql://localhost:3306/ICsecdb","system","manager");
Statement stmt=con.createStatement();
ResultSet rs=stmt.executeQuery("select * from stud");
System.out.println("Roll Numer\tStud Name");
System.out.println(" -");
while(rs.next())
System.out.println(rs.getInt(1)+" \t\t "+rs.getString(2));
con.close();
}catch(Exception e){ System.out.println(e);}
}
}
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Input / Output:
Result:
Thus the program for the implementation of MySql-Java connectivity for Student Database is
successfully executed.
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Ex. No. 6 (b) Implementation of Simple Application using Date:
JDBC for Employee Database
Aim:
To write a JAVA program for the implementation of simple Application using MySql-Java
connectivity for Employee Database.
Algorithm:
Program:
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Input / Output:
Particulars Max Mark Mark Secured
Program and Execution 15
Viva 10
Total 25
Result:
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Ex. No. 7 Implementation of Student Application with ADD, Date:
EDIT, DELETE using JDBC
Aim:
To write a JAVA program for the implementation of Student Application using MySql-Java
connectivity with ADD, EDIT, DELETE options.
Algorithm:
Step1: Start
Step2: Create forname() with Java-MySql Driver
Step3: Create a method getConnection() with name of the Database and password
Step4: Create an object for Statement class using con.createStatement()
Step5: Create an object for PreparedStatement with prepareStatement() method
Step9: Print all the records from the ResultSet using next() method
Step10: Close the main program
Step11: Stop
Program:
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.sql.*;
public class JDBCexSwing2 extends JFrame implements ActionListener
{
JLabel lblRollno,lblName;
JTextField txtRollno,txtName;
JButton delete1, save,exit, update1;
JDBCexSwing2()
{
super("JDBC and Swing Example");
//JPanel panel = new JPanel(new GridLayout(3,3));
JPanel panel = new JPanel(true);
panel.setLayout(new GridLayout(10,10));
lblRollno= new JLabel("RollNo");
panel.add(lblRollno);
txtRollno= new JTextField();
panel.add(txtRollno);
lblName= new JLabel("Name");
panel.add(lblName);
txtName= new JTextField();
panel.add(txtName);
save = new JButton("Save");
panel.add(save);
save.addActionListener(this);
delete1 = new JButton("Delete");
panel.add(delete1);
delete1.addActionListener(this);
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
update1 = new JButton("Update");
panel.add(update1);
update1.addActionListener(this);
exit = new JButton("Exit");
panel.add(exit);
exit.addActionListener(this);
add(panel);
setSize(500, 400);
this.setVisible(true);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==save)
{
AddStudent();
JOptionPane.showMessageDialog(this, "Student information updated
successfully");
}
else if(e.getSource()==delete1)
{
deleteStudent();
JOptionPane.showMessageDialog(this, "Student information deleted successfully");
}
else if(e.getSource()==update1)
{
updateStudent();
JOptionPane.showMessageDialog(this, "Student information updated
successfully");
}
else if(e.getSource()==exit)
{
this.dispose();
}
}
public void deleteStudent()
{
try
{
Class.forName("com.mysql.cj.jdbc.Driver");
Connection con1 =
DriverManager.getConnection("jdbc:mysql://localhost:3306/ICsecdb","system","manager");
int rollno = Integer.parseInt(txtRollno.getText());
PreparedStatement ps1=con1.prepareStatement("delete from stud where sid=?");
ps1.setInt(1,rollno);
int x = ps1.executeUpdate();
ps1.close();
con1.close();
}
catch (Exception ex)
{
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
JOptionPane.showMessageDialog(this, "Error");
}
public void updateStudent()
{
try
{
Class.forName("com.mysql.cj.jdbc.Driver");
Connection con2 =
DriverManager.getConnection("jdbc:mysql://localhost:3306/ICsecdb","system","manager");
int rollno = Integer.parseInt(txtRollno.getText());
String name = txtName.getText();
PreparedStatement ps2=con2.prepareStatement("update stud set sname = ? where
sid=?");
ps2.setString(1,name);
ps2.setInt(2,rollno);
int x = ps2.executeUpdate();
ps2.close();
con2.close();
}
catch (Exception ex)
{
JOptionPane.showMessageDialog(this, "Error");
}
}
public void AddStudent()
{
try
{
Class.forName("com.mysql.cj.jdbc.Driver");
Connection con =
DriverManager.getConnection("jdbc:mysql://localhost:3306/ICsecdb","system","manager");
int rollno = Integer.parseInt(txtRollno.getText());
String name = txtName.getText();
PreparedStatement ps=con.prepareStatement("insert into stud values(?,?)");
ps.setInt(1,rollno);//1 specifies the first parameter in the query
ps.setString(2,name);
int x = ps.executeUpdate();
ps.close();
con.close();
}
catch (Exception ex)
{
JOptionPane.showMessageDialog(this, "Error");
}
}
public static void main(String[] args)
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
{
JDBCexSwing2 ss = new JDBCexSwing2();
ss.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
Input / Output:
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Particulars Max Mark Mark Secured
Program and Execution 15
Viva 10
Total 25
Result:
29
Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Ex. No. 8(a) Implementation of FileInputStream and Date:
FileOutputStream using java.io package
Aim:
To write a JAVA program for the implementation of FileInputStream and FileOutputStream
using java.io package.
Algorithm:
Step1: Start
Step2: Create an object for FileInputStream class with the Physical file testout.txt
Step3: Reading the content of the file using read() method
Step4: Close the file using close() method
Step5: Create an object for FileOutputStream class with the Physical file testout.txt
Step9: Writing a content into the file using write() method
Step10: Close the file using close() main program
Step11: Stop
Program:
//a) Program for FileInputStream example
import java.io.*;
public class iofileinputstreamex1
{
public static void main(String args[])
{
try{
FileInputStream fin=new FileInputStream("D:\\testout.txt");
int i=0;
while((i=fin.read())!=-1)
{
System.out.println((char)i);
}
fin.close();
}catch(Exception e){System.out.println(e);}
}
}
Input:
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Output:
BME students are very good - yes
// b) Program for FileOutputStream example
import java.io.*;
public class iofileoutputstreamex1 {
public static void main(String args[])throws IOException
{
try{
DataInputStream di = new DataInputStream(System.in);
FileOutputStream fout=new FileOutputStream("D:\\testout.txt");
System.out.println("Enter the string to be written");
String s=di.readLine();
byte b[]=s.getBytes();//converting string into byte array
fout.write(b);
fout.close();
System.out.println("success...");
}catch(Exception e){System.out.println(e);}
}
}
Input:
Enter the string to be written
Smvec
success...
Output:
Result:
Thus the Java program for the implementation of FileInputStream and FileOutputStream has been
executed successfully.
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Ex. No. 8(b) Implementation of FileReader and FileWriter Date:
using java.io package
Aim:
To write a JAVA program for the implementation of FileReader and FileWriter using java.io
package.
Algorithm:
Program:
//a) Program for FileReader example
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Input:
Output:
// b) Program for FileWriter example
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Input:
Output:
Particulars Max Mark Mark Secured
Program and Execution 15
Viva 10
Total 25
Result:
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Ex. No. 9(a) Implementation of JAVA application using Date:
Exception Handling
Aim:
To write a JAVA program for the implementation of Exception Handling.
Algorithm:
Step1: Start
Step2: Read a and b values
Step3: c = a / b
Step4: if b is 0 then throw the exception and handling using try..catch blocks
Step5: if b is a non zero then print the result of the division
Step9: Stop
Program:
//Exception handling using Multiple catch blocks
import java.io.*;
public class exceptionhandling1 {
public static void main(String ar[])throws IOException
{
DataInputStream di = new DataInputStream(System.in);
int a, b, c;
System.out.println("Enter value for a");
a = Integer.parseInt(di.readLine());
System.out.println("Enter value for b");
b = Integer.parseInt(di.readLine());
try
{
c = (int) a / b;
System.out.println("Division = "+c);
}
catch(ArrayIndexOutOfBoundsException e)
{
System.out.println(e.getMessage());
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
}
Input / Output:
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Enter value for a
10
Enter value for b
0
/ by zero
Result:
Thus the Java program for the implementation of Exception Handling has been executed
successfully.
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Ex. No. 9(b) Implementation of JAVA application using Date:
Exception Handling with User Defined Exception
Aim:
To write a JAVA program for the implementation of Exception Handling with User Defined
Exception.
Algorithm:
Program:
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Input / Output:
Particulars Max Mark Mark Secured
Program and Execution 15
Viva 10
Total 25
Result:
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Ex.No. 10 Implementation of Packages in JAVA Date:
Aim:
To write a JAVA program for the implementation of Packages.
Algorithm:
Step1: Start
Step2: create this bmepack.java in E:/BME/
Step3: Compile this bmepack.java
Step4: Create this packmain.java in E:/
Step5: Compile and execute the packmain.java program
Step9: Stop
Program:
// Step1: create this bmepack.java in E:/BME/
package BME;
public class bmepack
{
public void packex1()
{
System.out.println("Inside the BME class and packex1() method");
}
}
//Step 2: Compile this bmepack.java
//Step 3: Create this packmain.java in E:/
import BME.*;
class packmain
{
public static void main(String ar[])
{
bmepack bc1 = new bmepack();
bc1.packex1();
}
}
// Step 4: Compile and execute the packmain.java program
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Programming in JAVA Laboratory
Department of Computer Science and Engineering, SMVEC
Input / Output:
E:\BME>javac bmepack.java
E:\BME>cd..
E:\>set classpath=e:/
E:\>javac packmain.java
E:\>java packmain
Inside the BME class and packex1() method
Particulars Max Mark Mark Secured
Program and Execution 15
Viva 10
Total 25
Result:
Thus the Java program for the implementation of Creating Packages and utilizing Packages has
been executed successfully.
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