binarysearchapp.java

Binary Search in Java. This can read in a .txt file and do search,sort on the file and output the so

//------------------------------------------------------------------------------
//Programmer:	Jun Cui 
//Date:         08.05.2008
//Assignment:   IT214 Java Lab 6 
//Software:     Netbeans IDE 6.0
//------------------------------------------------------------------------------

package pbinarysearch;

import java.io.*;

/**
 *
 * @author CUIJ2
 */
public class BinarySearchApp {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        String[] testNumbers = {"sky","water","sun","flower"};//array to sort
        String wanted = "sun";
        BinarySearch test = new BinarySearch();
       // BinarySearch test1 = new BinarySearch();
       
       System.out.print("Here is the unsorted small array:\n");
        for (int i = 0;i<testNumbers.length;i++)
        {
            System.out.print(testNumbers[i]+", ");
        }       
        
        test.selectSort(testNumbers);
        System.out.println("\nHere is the sorted small array:");
        for (int i = 0;i<testNumbers.length;i++)
        {
            System.out.print(testNumbers[i]+", ");
        }
        
        System.out.println("\nSearching for " +wanted+ " in the small array");
        System.out.println(test.search(testNumbers, wanted));
        
//----------Sort the threebears.txt file and Print to little.txt file-----------        
        int num = 1290;
        String[] newArray = new String[num];
        int index = 0;
        String want = "y";
        BufferedReader in;
        BinarySearch worker1  = new BinarySearch();
        
        String line;
        try
        {
            in =new BufferedReader(new FileReader("threebears.txt"));
            while (((line = in.readLine())!= null)&&(index < num))
            {
                newArray[index] = line;
                index++;
            }
        }
        catch(IOException e)
        {
            System.out.println("There was a problem with the file");
            e.printStackTrace();
        }
        catch(NumberFormatException ne)
        {
            System.out.println("Not a number: the string did not " +
                    "convert to a number ");
            ne.printStackTrace();
        }
        
        System.out.print("\nSort the threebears.txt file successfully!");
        worker1.selectSort(newArray);
        
        System.out.println("\n\nSearching for " +want+ 
                " in the sortedBears.txt file");
        System.out.println(worker1.search(newArray, want));
        
 //-----Write the sorted numbers into sortedBears.txt file for comparision------       
        try
        {
            FileWriter outFile = new FileWriter("sortedBears.txt");
            PrintWriter out = new PrintWriter(outFile);
            
            for(int i = 0; i < newArray.length; i++)
                out.println(newArray[i]);
            
            out.close();
        }
        catch (IOException e)
        {
            e.printStackTrace();            
        }
        
        System.out.print("\nWrite the sorted threebears.txt file to " +
                "sortedBears.txt successfully!");
    }
}