writing a Time24 object to a file
Hello all,
Bellow is a snippit of code from a larger program I have been working on. The program offers the user 4 options. Create a file of strings, time24 objects, or Integers. The user enters data of the appropriate type until a sentinel value is entered. After that, I call insertionSortR which is a generic insertion sort method, then I output it to a file. I use the first line of the file to label the file as containing Strings, Time24 objects, or Integers
The problem I'm having is writing the time24 object to a file correctly. It seems to write to the array correctly, but when it writes to the file, it writes this:
This file contains Time24 Items
assignment2.Time24@2a4983
The Strings and Integers write to the files correctly. Can someone point me in the right direction. Maybe I'm not seeing something in my code?
package program2;
import java.io.*;
import java.util.*;
/**
* @author Danny Sperling CIS 676
*/
publicclass Main{
/**
* The Main class offers the user four options to reate a file consisting
* of Strings, Time24 Objects, or Integers. The user enters data of
* the appropriate type until a sentinel value is reached.
* Calls on insertionSortR and binSearch methods when needed.
* The fourth option is to search the file for a specified item
*
* @param args the command line arguments
* @throws IOException If an input or output exception occurred
*/
publicstatic <Textends Comparable><?super T>>
void main(String[] args)throws IOException{
BufferedReader keyboard =null;
FileOutputStream out;
PrintStream p =null;
FileInputStream fStream =null;
DataInputStream in =null;
BufferedReader inputFile =null;
String hour =null;
String userChoice;
PrintWriter pWriter =null;
FileWriter fWriter =null;
BufferedReader fReader =null;
String fileName =null;
String searchFile =null;
String strData;
Object objData;
String integerData;
int intData = 0;
int searchInt;
Integer intNum;
File file;
int objLen = 0;
int i;
int number;
int hourData;
int mid;
int midValue;
int first = 0;
int last = objLen-1;
String searchItem;
do{
// creates keyboard as a buffered input stream
keyboard =new BufferedReader(new InputStreamReader(System.in));
//prompts user to choose 1,2,3,4, or 5 to make a corresponding choice
System.out.println("Please Enter: ");
System.out.println("1 to Create a File of type String: ");
System.out.println("2 to Create a File of type Time24 Object: ");
System.out.println("3 to Create a File of type Integer: ");
System.out.println("4 to Search a File: ");
System.out.println("5 to exit the program: ");
userChoice = keyboard.readLine();//user enters 1,2,3,or 4
// converts a userChoice into an int value and sets = to number
number = Integer.parseInt(userChoice);{
if (number == 1)//user chose option 1 to create strings
{
System.out.println("Please Enter the File Name to Create with a" +
".txt extension: ");
String[] strArr =new String[200];//Create new String Array
fileName = keyboard.readLine();//user names file
file =new File(fileName);//creates the user named file
strData = keyboard.readLine();
i=0;//array index marker
objLen = 0;//array size counter
//Loop to input string data into strArr with sentinel "end"
while (!strData.equals("end") && i < strArr.length)
{
System.out.println("Enter a name and press Enter. " +
"Type 'end' and press Enter when done: ");
strData = keyboard.readLine();
strArr[i] = strData;//sets array index = user input
i++;//increments i for next input
objLen++;//increments size counter
}
//Create a new file output stream connected to fileName
out =new FileOutputStream(fileName);
//Connect print stream to the output stream
p =new PrintStream(out);
//label first line of file to show contains strings
p.print("This file contains Strings" +'\n');
//call generic recursive insertionSort() to order the array
insertionSortR(strArr, objLen-1);
// Now output to a file with for loop
for (i = 0; i < objLen; i++)
p.println(strArr[i]);
}
elseif (number == 2)//user chose option 2 to create Time24 Array
{
Time24[] time24Arr =new Time24[200];//create new Time24[]
System.out.println("Please Enter the File Name to Create with a" +
".txt extension: ");
fileName = keyboard.readLine();//user names file
file =new File(fileName);//Creates user named File
hour = keyboard.readLine();
i=0;//array index marker
objLen = 0;//array size counter
// Create a new file output stream
// connected to "fileName"
out =new FileOutputStream(fileName);
// Connect print stream to the output stream
p =new PrintStream(out);
//Loop for putting Time24 Items into an array with sentinel "99"
while (!hour.equals("99") && i < time24Arr.length){
System.out.println("Please enter the hour and press Enter." +
"Type 99 and press enter to end: ");
hour = keyboard.readLine();
//converts String hour to integer
hourData = Integer.parseInt(hour);
System.out.println("Please enter the minutes and press Enter: ");
String min = keyboard.readLine();
//converts String min to integer
int minData = Integer.parseInt(min);
System.out.println("please enter the seconds and press Enter: ");
String sec = keyboard.readLine();
//converts String sec to integer
int secData = Integer.parseInt(sec);
//combine hourData, minData, & secData to make new Time24 Item
Time24 timeData =new Time24(hourData, minData, secData);
time24Arr[i] = timeData;//Place timeData into index in Array
i++;//increment index
objLen++;//increment array size counter
//loop for putting the strings into the array
}
// Create a new file output stream connected to "fileName"
out =new FileOutputStream(fileName);
// Connect print stream to the output stream
p =new PrintStream(out);
//label first line of file to show contains Time24 Items
p.print("This file contains Time24 Items" +'\n');
//call generic recursive insertionSort() to order the array
insertionSortR(time24Arr, objLen-1);
// Now output to a file with for loop
for (i = 0; i < objLen; i++)
p.println(time24Arr[i]);
}
elseif (number == 3)//user chose option 2 to create Time24 Array
{
System.out.println("Please Enter the File Name to Create with a" +
".txt extension: ");
Integer[] intArr =new Integer[200];//Create new Integer[]
fileName = keyboard.readLine();//user names file
file =new File(fileName);//Create user named file
integerData = keyboard.readLine();
i=0;//Array Index marker
objLen = 0;//Array Size counter
//keep looping till sentinel
while (!integerData.equals("0") && i < intArr.length)
{
System.out.println("Enter a Integer (not 0) and press Enter. " +
"Type 0 and press Enter when done: ");
integerData = keyboard.readLine();
intData = Integer.parseInt(integerData);
intArr[i] = intData;
i++;
objLen++;
//loop for putting the strings into the array
}
// Create a new file output stream
// connected to "fileName"
out =new FileOutputStream(fileName);
// Connect print stream to the output stream
p =new PrintStream(out);
//Label first line of file to show it contains Integers
p.print("This file contains Integers" +'\n');
//call generic recursive insertionSort() to order the array
insertionSortR(intArr, objLen-1);
// Now output to a file with for loop
for (i = 0; i < objLen; i++)
p.println(intArr[i]);
}
/**
* This is a Generic, Recursive version of the insertion sort.
* It sorts Strings, Time24 objects, and Integers.
*
* @param arrTakes String, Time24, or Integer Arrays
* @param objLenthe current size of the array being passed
*
*/
public static<Textends Comparable><?super T>>
void insertionSortR(T[] arr,int objLen)
{
int i, j, n = objLen;
T temp;
//place element at index i into sublist
//from index 0 to i-1 where 1 <= i < n,
for (i = 1; i < n; i++)
{
//index j scans down list from index i looking for correct
// position to locate temp; assigns it to arr at index j
j = i;
temp = arr[i];
//locate insertion point by scanning downward as long as
//temp < arr[j] and we have not encountered the beginning of array
while (j > 0 && temp.compareTo(arr[j-1]) <0)
{
//shift elements up list to make room for insertion
arr[j] = arr[j-1];
j--;
}
//the location is found; insert temp
arr[j] = temp;
}
}
Can someone please please help me figure out why the Time24 data will not write to the file correctly?
