Lab 5 Parts 1 AND 2

1 /************************************************
2 * This class, Lab5a.java ...
3 *
4 * @author: Elizabeth Adams
5 * Date:     01/26/05
6 *
7 */
8
9 //************************************************
10 // Honor Statement: This work conforms to the JMU
11 //    Honor Code and the academic rules for this class.
12 // Acknowledgement: Indicate any student help or other
13 //    references for this program not directly given in the
14 //    assignment. Include TA name if applicable.
15 //************************************************
16
17 ÏÏÏimport java.util.Scanner;
18 ÏÏÏimport java.io.*;
19
20 ÏÕÖ×public class Lab5a
21 ÏÏ§{
22 ÏÏ§/** main method - what do I do?
23 ÏÏ§*/
24 ÏÏ§ÏÞßàpublic static void main (String args []) throws IOException
25 ÏÏ§ÏÏ§{
26 ÏÏ§ÏÏ§// These are required variables. Add any other variables needed
27 ÏÏ§ÏÏ§// below these required ones.
28 ÏÏ§ÏÏ¨¹íÏScanner myKeyboardScanner, myFileScanner, lineScanner;
29 ÏÏ§ÏÏ¨¹íÏboolean fileFound, numberFound;
30 ÏÏ§ÏÏ¨¹íÏString inputFileName, goodOutputFileName,badOutputFileName;
31 ÏÏ§ÏÏ¨¹íÏString dataLine;
32 ÏÏ§ÏÏ¨¹íÏString badValue;
33 ÏÏ§ÏÏ¨¹íÏint goodValue;
34 ÏÏ§ÏÏ¨¹íÏFileWriter myGoodFileWriter;
35 ÏÏ§ÏÏ¨¹íÏBufferedWriter myGoodBufferedWriter;
36 ÏÏ§ÏÏ¨¹íÏPrintWriter myGoodPrintWriter;
37 ÏÏ§ÏÏ¨¹íÏFileWriter myBadFileWriter;
38 ÏÏ§ÏÏ¨¹íÏBufferedWriter myBadBufferedWriter;
39 ÏÏ§ÏÏ¨¹íÏPrintWriter myBadPrintWriter;
40 ÏÏ§ÏÏ¨¹íÏint smallest ;
41 ÏÏ§ÏÏ¨¹íÏint thirteenCount, valueCount ;
42 ÏÏ§ÏÏ§
43 ÏÏ§ÏÏ§      // sets up myKeyboardScanner for keyboard input
44 ÏÏ§ÏÏ¨¹¹ÏmyKeyboardScanner = new Scanner (System.in);
45 ÏÏ§ÏÏ§
46 ÏÏ§ÏÏ§      // prompt user for input file name
47 ÏÏ§ÏÏ¨¹¹ÏSystem.out.println
48 ÏÏ§ÏÏ§ÏÏÏÏÏÏ("Please enter the name of your input file with absolute pathname");
49 ÏÏ§ÏÏ§
50 ÏÏ§ÏÏ§     // get input filename from the user
51 ÏÏ§ÏÏ¨¹¹ÏinputFileName = myKeyboardScanner.nextLine();
52 ÏÏ§ÏÏ§
53 ÏÏ§ÏÏ¨¹¹ÏfileFound = false;   // input file hasn't been found yet
54 ÏÏ§ÏÏ§
55 ÏÏ§ÏÏ¨¹¹®do
56 ÏÏ§ÏÏ§ÏÏ5{
57 ÏÏ§ÏÏ§ÏÏ7¹¹´try
58 ÏÏ§ÏÏ§ÏÏ5ÏÏ§{
59 ÏÏ§ÏÏ§ÏÏ5ÏÏ§   // to use the user's filename
60 ÏÏ§ÏÏ§ÏÏ5ÏÏ¨¹¹ÏmyFileScanner = new Scanner (new File (inputFileName ) );
61 ÏÏ§ÏÏ§ÏÏ5ÏÏ¨¹¹ÏfileFound = true; // was successful
62 ÏÏ§ÏÏ§ÏÏ5ÏÏ§}
63 ÏÏ§ÏÏ§ÏÏ5ÏÏ§Ïðîìcatch (FileNotFoundException fnfe) // failed
64 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ§{
65 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ¨¹¹ÏSystem.out.println
66 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ§ÏÏÏÏÏÏ(" the file whose name you entered could not be found ");
67 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ¨¹¹ÏmyFileScanner = new Scanner ("squib.txt");
68 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ¨¹¹ÏSystem.out.println // re-prompt user for input file name
69 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ§ÏÏÏÏÏÏ("Please enter the name of your input file with absolute pathname");
70 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ¨¹¹ÏinputFileName = myKeyboardScanner.nextLine(); // gets input filename from the user
71 ÏÏ§ÏÏ§ÏÏ5ÏÏ©ÏÏ©}
72 ÏÏ§ÏÏ§ÏÏ5}
73 ÏÏ§ÏÏ§ÏÏòwhile (!fileFound); // try again if unsuccessful
74 ÏÏ§ÏÏ§
75 ÏÏ§ÏÏ§      // prompt user for output file name for good data
76 ÏÏ§ÏÏ¨¹¹ÏSystem.out.println
77 ÏÏ§ÏÏ§ÏÏÏÏÏÏ("Please enter the name of your output file for good data with complete path name");
78 ÏÏ§ÏÏ§
79 ÏÏ§ÏÏ§     // get output filename from the user for good data
80 ÏÏ§ÏÏ¨¹¹ÏgoodOutputFileName = myKeyboardScanner.nextLine();
81 ÏÏ§ÏÏ§
82 ÏÏ§ÏÏ§       //prepare output file for writing good data
83 ÏÏ§ÏÏ¨¹¹ÏmyGoodFileWriter     = new FileWriter(goodOutputFileName);
84 ÏÏ§ÏÏ¨¹¹ÏmyGoodBufferedWriter = new BufferedWriter (myGoodFileWriter);
85 ÏÏ§ÏÏ¨¹¹ÏmyGoodPrintWriter    = new PrintWriter (myGoodBufferedWriter);
86 ÏÏ§ÏÏ§
87 ÏÏ§ÏÏ§      // prompt user for output file name for bad data
88 ÏÏ§ÏÏ¨¹¹ÏSystem.out.println
89 ÏÏ§ÏÏ§ÏÏÏÏÏÏ("Please enter the name of your output file for bad data with complete path name");
90 ÏÏ§ÏÏ§
91 ÏÏ§ÏÏ§     // get output filename from the user for bad data
92 ÏÏ§ÏÏ¨¹¹ÏbadOutputFileName = myKeyboardScanner.nextLine();
93 ÏÏ§ÏÏ§
94 ÏÏ§ÏÏ§       //prepare output file for writing good data
95 ÏÏ§ÏÏ¨¹¹ÏmyBadFileWriter     = new FileWriter(badOutputFileName);
96 ÏÏ§ÏÏ¨¹¹ÏmyBadBufferedWriter = new BufferedWriter (myBadFileWriter);
97 ÏÏ§ÏÏ¨¹¹ÏmyBadPrintWriter    = new PrintWriter (myBadBufferedWriter);
98 ÏÏ§ÏÏ§
99 ÏÏ§ÏÏ¨¹¹±while ( myFileScanner.hasNext()) // while there is more data in the input file
100 ÏÏ§ÏÏ§ÏÏ5{
101 ÏÏ§ÏÏ§ÏÏ7¹¹ÏdataLine = myFileScanner.nextLine(); // reads the line
102 ÏÏ§ÏÏ§ÏÏ7¹¹ÏSystem.out.println (" picked up " + dataLine );
103 ÏÏ§ÏÏ§ÏÏ7¹¹ÏlineScanner = new Scanner (dataLine); // creates the line Scanner
104 ÏÏ§ÏÏ§ÏÏ5 //lineScanner.useDelimiter(" ";
105 ÏÏ§ÏÏ§ÏÏ7¹¹±while (lineScanner.hasNext()) // there is more data on the line
106 ÏÏ§ÏÏ§ÏÏ5ÏÏ5{
107 ÏÏ§ÏÏ§ÏÏ5ÏÏ7¹¹´try // to get a number
108 ÏÏ§ÏÏ§ÏÏ5ÏÏ5ÏÏ§{
109 ÏÏ§ÏÏ§ÏÏ5ÏÏ5ÏÏ¨¹¹ÏgoodValue = lineScanner.nextInt(); // gets a number
110 ÏÏ§ÏÏ§ÏÏ5ÏÏ5ÏÏ¨¹¹ÏSystem.out.println (goodValue + " integer ");
111 ÏÏ§ÏÏ§ÏÏ5ÏÏ5ÏÏ¨¹¹ÏmyGoodPrintWriter.println (goodValue);
112 ÏÏ§ÏÏ§ÏÏ5ÏÏ5ÏÏ§}
113 ÏÏ§ÏÏ§ÏÏ5ÏÏ5ÏÏ§Ïðîìcatch (java.util.InputMismatchException ime)
114 ÏÏ§ÏÏ§ÏÏ5ÏÏ5ÏÏ§ÏÏ§{
115 ÏÏ§ÏÏ§ÏÏ5ÏÏ5ÏÏ§ÏÏ¨¹¹ÏbadValue = lineScanner.next(); // gets a String from line
116 ÏÏ§ÏÏ§ÏÏ5ÏÏ5ÏÏ§ÏÏ¨¹¹ÏSystem.out.println (badValue + " String");
117 ÏÏ§ÏÏ§ÏÏ5ÏÏ5ÏÏ§ÏÏ¨¹¹ÏmyBadPrintWriter.println (badValue);
118 ÏÏ§ÏÏ§ÏÏ5ÏÏ5ÏÏ©ÏÏ©}
119 ÏÏ§ÏÏ§ÏÏ5ÏÏ°} // end inner while
120 ÏÏ§ÏÏ§ÏÏ°} // end outer while
121 ÏÏ§ÏÏ¨¹¹ÏmyGoodPrintWriter.close();
122 ÏÏ§ÏÏ¨¹¹ÏmyBadPrintWriter.close();
123 ÏÏ§ÏÏ§
124 ÏÏ§ÏÏ¨¹¹ÏSystem.out.println (" STARTING PART 2 ");
125 ÏÏ§ÏÏ§        // initialize variables for second part
126 ÏÏ§ÏÏ§
127 ÏÏ§ÏÏ§
128 ÏÏ§ÏÏ¨¹¹Ïsmallest = Integer.MIN_VALUE;
129 ÏÏ§ÏÏ¨¹¹ÏthirteenCount = 0;
130 ÏÏ§ÏÏ¨¹¹ÏfileFound = false;
131 ÏÏ§ÏÏ¨¹¹ÏnumberFound = false;
132 ÏÏ§ÏÏ¨¹¹ÏvalueCount = 0;
133 ÏÏ§ÏÏ§
134 ÏÏ§ÏÏ§      // prompt user for input file name
135 ÏÏ§ÏÏ¨¹¹ÏSystem.out.println
136 ÏÏ§ÏÏ§ÏÏÏÏÏÏ("Please enter the name of your input file with absolute pathname");
137 ÏÏ§ÏÏ§
138 ÏÏ§ÏÏ§     // get input filename from the user
139 ÏÏ§ÏÏ¨¹¹ÏinputFileName = myKeyboardScanner.nextLine();
140 ÏÏ§ÏÏ§
141 ÏÏ§ÏÏ¨¹¹®do
142 ÏÏ§ÏÏ§ÏÏ5{
143 ÏÏ§ÏÏ§ÏÏ7¹¹´try
144 ÏÏ§ÏÏ§ÏÏ5ÏÏ§{
145 ÏÏ§ÏÏ§ÏÏ5ÏÏ¨¹¹ÏmyFileScanner = new Scanner (new File (inputFileName));
146 ÏÏ§ÏÏ§ÏÏ5ÏÏ¨¹¹ÏfileFound = true;
147 ÏÏ§ÏÏ§ÏÏ5ÏÏ§}
148 ÏÏ§ÏÏ§ÏÏ5ÏÏ§Ïðîìcatch (FileNotFoundException fne)
149 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ§{
150 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ¨¹¹ÏSystem.out.println (" your file wasn't found ");
151 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ¨¹¹ÏSystem.out.println (" please enter your input filename again ");
152 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ¨¹¹ÏmyFileScanner = new Scanner ("junk.txt");
153 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ¨¹¹ÏinputFileName = myKeyboardScanner.nextLine();
154 ÏÏ§ÏÏ§ÏÏ5ÏÏ©ÏÏ©}
155 ÏÏ§ÏÏ§ÏÏ5}
156 ÏÏ§ÏÏ§ÏÏòwhile (!fileFound);
157 ÏÏ§ÏÏ§
158 ÏÏ§ÏÏ§
159 ÏÏ§ÏÏ¨¹¹±while ( myFileScanner.hasNext()) // process data
160 ÏÏ§ÏÏ§ÏÏ5{
161 ÏÏ§ÏÏ§ÏÏ7¹¹´try // to get a number
162 ÏÏ§ÏÏ§ÏÏ5ÏÏ§{
163 ÏÏ§ÏÏ§ÏÏ5ÏÏ¨¹¹ÏgoodValue = myFileScanner.nextInt();
164 ÏÏ§ÏÏ§ÏÏ5ÏÏ§   if (!numberFound)
165 ÏÏ§ÏÏ§ÏÏ5ÏÏ§Ï6§{
166 ÏÏ§ÏÏ§ÏÏ5ÏÏ§Ï6¨¹¹Ïsmallest= goodValue;
167 ÏÏ§ÏÏ§ÏÏ5ÏÏ§Ï6¾¹¹ÏnumberFound = true;
168 ÏÏ§ÏÏ§ÏÏ5ÏÏ§Ï6Ï}
169 ÏÏ§ÏÏ§ÏÏ5ÏÏ§Ï÷´else if (goodValue < smallest) // is it smallest
170 ÏÏ§ÏÏ§ÏÏ5ÏÏ§Ï¶¾¹¹Ïsmallest = goodValue;
171 ÏÏ§ÏÏ§ÏÏ5ÏÏ§
172 ÏÏ§ÏÏ§ÏÏ5ÏÏ¨¹³´if (goodValue == 13)      // is it 13?
173 ÏÏ§ÏÏ§ÏÏ5ÏÏ§Ï¶¾¹¹ÏthirteenCount++;
174 ÏÏ§ÏÏ§ÏÏ5ÏÏ¨¹¹ÏvalueCount++;
175 ÏÏ§ÏÏ§ÏÏ5ÏÏ§
176 ÏÏ§ÏÏ§ÏÏ5ÏÏ§   // System.out.println (" integer " + temp + " found "); // for debugging only
177 ÏÏ§ÏÏ§ÏÏ5ÏÏ§}
178 ÏÏ§ÏÏ§ÏÏ5ÏÏ§/*
179 ÏÏ§ÏÏ§ÏÏ5ÏÏ§catch (NumberFormatException nfe) // this one won't occur
180 ÏÏ§ÏÏ§ÏÏ5ÏÏ§{
181 ÏÏ§ÏÏ§ÏÏ5ÏÏ§   junk = myFileScanner.next(); // bypass non-integer
182 ÏÏ§ÏÏ§ÏÏ5ÏÏ§   System.out.println (" non-integer " + junk + " found ");
183 ÏÏ§ÏÏ§ÏÏ5ÏÏ§}
184 ÏÏ§ÏÏ§ÏÏ5ÏÏ§*/
185 ÏÏ§ÏÏ§ÏÏ5ÏÏ§Ïðîìcatch (java.util.InputMismatchException ime)
186 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ§{
187 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ¨¹¹ÏbadValue = myFileScanner.next(); // bypass non-integer
188 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ¨¹¹ÏSystem.out.println (" non-integer " + badValue + " found ");
189 ÏÏ§ÏÏ§ÏÏ5ÏÏ§ÏÏ§   valueCount++;
190 ÏÏ§ÏÏ§ÏÏ5ÏÏ©ÏÏ©}
191 ÏÏ§ÏÏ§ÏÏ°} // end while
192 ÏÏ§ÏÏ§
193 ÏÏ§ÏÏ¨¹³´if (!numberFound)
194 ÏÏ§ÏÏ§Ï6¾¹¹ÏSystem.out.println(" there were no integers in the file");
195 ÏÏ§ÏÏ§Ïö´else
196 ÏÏ§ÏÏ§Ï¸§{
197 ÏÏ§ÏÏ§Ï¸¨¹¹ÏSystem.out.println
198 ÏÏ§ÏÏ§Ï¸§ÏÏÏÏÏÏ(" The smallest number in the file was: " + smallest);
199 ÏÏ§ÏÏ§Ï¸¨¹¹ÏSystem.out.println
200 ÏÏ§ÏÏ§Ï¸§ÏÏÏÏÏÏ(" The number of thirteens in the file was: " + thirteenCount);
201 ÏÏ§ÏÏ§Ï¸¾¹¹ÏSystem.out.println
202 ÏÏ§ÏÏ§ÏÈÏÏÏÏÏÏÏ   ( " The number of values in the file was: " + valueCount);}
203 ÏÏ§ÏÏ§
204 ÏÏ§ÏÏ©} // main
205 ÏÏ©}// end class