error: incompatible types and

[nasimalotaibi]

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Test  extends JFrame implements ActionListener
{
	JTextField t1=new JTextField(10);
	JTextField t2=new JTextField(10);
	JTextField t3=new JTextField(10);
	JTextField t4=new JTextField(10);
	JTextField t5=new JTextField(10);
	JTextField t6=new JTextField(10);
	JButton b1=new JButton("MakeReservation");
	JButton b2=new JButton("DeleteReservation");
	JButton b3=new JButton("searchReservation");
	JButton b4=new JButton("printResrevation");
	JButton b5=new JButton("clear");
	JButton b6=new JButton("Exit");
	JLabel l1=new JLabel("Reservation number                ");
	JLabel l2=new JLabel("Room Number              ");
    JLabel l3=new JLabel("OccupantsNumber                 ");
	JLabel l4=new JLabel("CstomerName                     ");
	JLabel l5=new JLabel("Duration                  ");
	JLabel l6=new JLabel("ArrivalsDay              ");
	JTextArea A=new JTextArea(10,70);
	list List1=new list();
	public static void main(String[] args)
	{
		Test  t=new Test();
	}
	public Test()
	{
		setVisible(true);
		setTitle("Grand Hotel Reservation System");
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		setSize(700,600);
		setLayout(new FlowLayout());
		add(t1);add(t2);
		add(t3);add(t4);
		add(t5);add(t6);
		Font ab=new Font("Garamond",Font.BOLD,20);
		l1.setFont(ab);l2.setFont(ab);l3.setFont(ab);l4.setFont(ab);l5.setFont(ab);l6.setFont(ab);
		add(A);
		add(b1);add(b2);
		add(b3);add(b4);
		add(b5);add(b6);
		b1.addActionListener(this);
		b2.addActionListener(this);
		b3.addActionListener(this);
		b4.addActionListener(this);
		b5.addActionListener(this);
	    b6.addActionListener(this);
	}
	    public void actionPerformed(ActionEvent ae)
    	{
		String a=ae.getActionCommand();
		if(a.equals("MakeReservation"))
		{
            List1.AddandSort(Integer.parseInt(t1.getText()),Integer.parseInt(t2.getText()),t3.getText(),t4.getText(),t5.getText(),t6.getText());

			JOptionPane.showMessageDialog(null,"Reservation successfully registered");
		}
		else if(a.equals("searchReservation"))
		{
			String n=JOptionPane.showInputDialog("Enter the reservation number");
				int m=Integer.parseInt(n);
			IntSLLNode t;
			for(t=List1.head;t!=null&&m!=t.ReservationNo;t=t.next);
			if(t!=null)
			{
				A.setText("");
				A.append("The record is found\n");
				A.append("Reservation number."+"\t\t"+"Room number."+"\t"+"OccupantsNumber"+"\t"+"CstomerName"+"\t"+"Duration"+"\t"+"ArrivalsDay"+"\n");
				A.append(t.ReservationNo+"\t\t"+t.RoomNo+"\t"+t.OccupantsNo+"\t"+t.CstomerName+"\t"+t.duration+"\t"+t.ArrivalsDay+"\n");
			}
			else
				JOptionPane.showMessageDialog(null,"not found");
		}

		else if(a.equals("clear"))
		{
		t1.setText("");
		t2.setText("");
		t3.setText("");
		t4.setText("");
		t5.setText("");
		t6.setText("");
     	}
     	else if(a.equals("DeleteReservation"))
	    {
		String n=JOptionPane.showInputDialog("Enter the Reservation number to delete it");
			int m=Integer.parseInt(n);
			boolean b=List1.deleteReservation(m);
			if(b==true)

					JOptionPane.showMessageDialog(null,"Successfully Deleted");
				else
					JOptionPane.showMessageDialog(null,"not deleted");

     	}
     	else if(a.equals("Exit"))
     	{
	     System.exit(0);

	}
    }
 }

I have error: incompatible types in line 67
and
I have error : error: cannot find symbol in line 92

[stultuske]

can you provide us with the full error messages? either you 've not given us all of your code, or you're also having trouble with the lines

list List1 = new list();
...
IntSLLNode t;