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9.0

My search method dosn't work in BST how can I alter it to work

Asked by obad62 in Java Programming Language

Tags: My search method dosn't work in BST how can I alter it to work

I have this code to save from file name and birth date but I add search method to insert name and the method returen the date of birth that assocated with this name
But unfortunatly it dosen't work

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             package courseWork;
 
import java.io.*;
import java.util.*;
/*
 * This is a tree class
 */
public class BstNode {
	
	  private String name;
	  private static Date dateOfBirth;
	  public  static Object root;
	  private BstNode left;
	  private BstNode right;
	
	  
	  public static void main(String[] args) throws IOException  {//this is the main method of this class 
		  insert();
		  
		  /*
		  System.out.println("Please insert the element that you want to find  it ");
		  Scanner scanner = new Scanner (System.in);
		  String value = scanner.nextLine();
		  */
		 
		  
		  }
	  public BstNode(String name, Date dateOfBirth) { //this is a contrast of this class 
	    this.name = name;
	    this.dateOfBirth = dateOfBirth;
	  }
	  
	 
	  public void insert(BstNode node) { // this method just for decleir the tree  
		  if (this.name.compareTo(node.name) > 0) {
	      if (left == null) {
	        left = node;
	      } else {
	        left.insert(node);
	      }
	    } else {
	      if (right == null) {
	        right = node;
	      } else {
	        right.insert(node);
	      }
	    }
	  }
	
	  public void print() {
	    if (left != null) {
	      left.print();
	    }
	    System.out.println(name);
	    if (right != null) {
	      right.print();
	    }
	  }
	  
	  
	  
	  public static void insert() throws IOException{  // this method for insert from file into tree  
		  	File inputFile = new File("data.txt");                  
			Scanner reader = new Scanner ( inputFile);
			BstNode root = new BstNode("", dateOfBirth);
			while(reader.hasNext()){
				root.insert(new BstNode(reader.nextLine(), dateOfBirth));		        		
				root.print();
				System.out.println("------------------------------");
				
			}
			
			
		
			
			
		}
	  //*********************************************************************
	//  This is method of find birth day if i insert name 
	  
	  public boolean find (BstNode node) { // this method just for decleir the tree
		  /*
		  System.out.println("Please insert the element that you want to find  it ");
		  Scanner scanner = new Scanner (System.in);
		  String value = scanner.nextLine();
		  */
		  
		  if (this.name.compareTo(node.name) > 0) {
	      if (left == null) {
	        left = node;
	      } else {
	        return true;
	      }
	    } else {
	      if (right == null) {
	        right = node;
	      } else {
	        right.insert(node);
	      }
	    }
		return true;
	  }
	  	
	  
	  
	  
	  
	 //****************************************************************** 
	
 
	}
           
         

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My search method dosn't work in BST how can I alter it to work

Asked by obad62 in Java Programming Language

Tags: My search method dosn't work in BST how can I alter it to work

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