15 Java is fun...kah..???

salam..

import java.text.*;

public class BSTAirline

{

AirlineTreeNode root;

public BSTAirline()

{ root = null; }//BSTAirline

public void insert(Airline a)

{

if(root == null)

root = new AirlineTreeNode(a);

else

insert(a,root);

}//insert

public void insert(Airline data,AirlineTreeNode node)

{

if(node == null)

node = new AirlineTreeNode(data);

else

{

if(data.getNum()

{

if(node.left == null)

node.left = new AirlineTreeNode(data);

else

insert(data,node.left);

}//if

else

{

if(node.right == null)

node.right = new AirlineTreeNode(data);

else

insert(data,node.right);

}//else

}//else

}//insert

public void findInfo(String dest)

{

findInfo(dest, root);

}//displayAirline

public void findInfo(String dest, AirlineTreeNode a)

{

if(a != null)

{

if(a.data.getDestination().equalsIgnoreCase(dest))

{

System.out.println("AIRLINE INFO");

a.data.display();

}//if

findInfo(dest, a.left);

findInfo(dest, a.right);

}//if

}//displayAirline

public void displayAll() // Display passengers in ascending order

{ displayAll(root); }//displayAll

public void displayAll(AirlineTreeNode node)

{

if(node == null)

return;

displayAll(node.left);

node.data.display();

System.out.println("+++++++++++++++++++++++++++++++++++++");

displayAll(node.right);

}//displayAll

public void newPrice()

{ newPrice(root); }//newPrice

public void newPrice(AirlineTreeNode node)

{

if(node == null)

return;

newPrice(node.left);

node.data.display();

double temp = node.data.getPrice()-(node.data.getPrice()*0.15);

DecimalFormat df = new DecimalFormat("#.##");

System.out.println("New Price:RM "+(df.format(temp)));

System.out.println();

newPrice(node.right);

}//calculate and display new price

public int totalPassenger()

{ return totalPassenger(root); }//totalPassenger

public int totalPassenger(AirlineTreeNode node)

{

if(node == null)

return 0;

int count = node.data.getNum();

return count +totalPassenger(node.left)+totalPassenger(node.right);

}//totalPassenger

}//class BSTAirline

pesanan penaja : xde idea..