=================================================================================================
== MyException.java
=================================================================================================

package user_defined_exception;

public class MyException extends Exception 
{ 
    public MyException(String s) 
    { 
        // Call constructor of parent Exception 
        super(s); 
    } 
} 

=================================================================================================
== ExceptionTest.java
=================================================================================================

public class ExceptionTest {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		
		try
        { 
            // Throw an object of user defined exception 
            throw new MyException("GeeksGeeks"); 
        } 
        catch (MyException ex) 
        { 
            System.out.println("Caught"); 
  
            // Print the message from MyException object 
            System.out.println(ex.getMessage()); 
        } 
		

	}

}

=================================================================================================
== StockAttrNameNotFoundException.java
=================================================================================================

public class ExceptionTest {

package user_defined_exception;

public class StockAttrNameNotFoundException extends Exception 
{ 
    public StockAttrNameNotFoundException(String s) 
    { 
        // Call constructor of parent Exception 
        super(s); 
    }

    public String getDetailedMsg( String in_attr_name )
    {
    	String msg = "Stock attribute name not found !!!" + in_attr_name ;
    	return msg;
    
    }
	
	
} 

=================================================================================================
== ExceptionTest.java
=================================================================================================


package user_defined_exception;

public class ExceptionTest {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		
		
		try
        { 
			
            // Throw an object of user defined exception 
            throw new StockAttrNameNotFoundException("GeeksGeeks"); 
        } 
        catch (StockAttrNameNotFoundException ex) 
        { 
            System.out.println("Caught"); 
  
            // Print the message from MyException object 
            System.out.println(ex.getMessage()); 
            
            System.out.println(ex.getDetailedMsg( "weekly_rate" )); 
            
        }
		
		

	}

}