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| 1 | package task; | |
| 2 | ||
| 3 | import java.io.*; | |
| 4 | import java.lang.reflect.InvocationTargetException; | |
| 5 | import java.util.*; | |
| 6 | ||
| 7 | abstract class FigureGeneral {
| |
| 8 | private double width; | |
| 9 | private double height; | |
| 10 | private String name; | |
| 11 | ||
| 12 | FigureGeneral(double width, double height, String name) {
| |
| 13 | this.width = width; | |
| 14 | this.height = height; | |
| 15 | this.name = name; | |
| 16 | } | |
| 17 | ||
| 18 | Double getWidth() {
| |
| 19 | return width; | |
| 20 | } | |
| 21 | ||
| 22 | Double getHeight() {
| |
| 23 | return height; | |
| 24 | } | |
| 25 | ||
| 26 | void setWidth(double width) {
| |
| 27 | this.width = width; | |
| 28 | } | |
| 29 | ||
| 30 | void setHeight(double height) {
| |
| 31 | this.height = height; | |
| 32 | } | |
| 33 | ||
| 34 | String getName() {
| |
| 35 | return name; | |
| 36 | } | |
| 37 | ||
| 38 | abstract public Double area(); | |
| 39 | ||
| 40 | public String toString() {
| |
| 41 | return String.format(getName() + " " + "%.0f" + " " + "%.0f", | |
| 42 | getWidth(), getHeight()); | |
| 43 | } | |
| 44 | ||
| 45 | public void toFile() {
| |
| 46 | try {
| |
| 47 | File theDir = new File("./serialized");
| |
| 48 | if (!theDir.exists()) | |
| 49 | theDir.mkdir(); | |
| 50 | String fileName = "./serialized/" + this.getClass().getSimpleName() | |
| 51 | + Calendar.getInstance().getTimeInMillis() + ".txt"; | |
| 52 | FileWriter writer = new FileWriter(new File(fileName)); | |
| 53 | BufferedWriter out = new BufferedWriter(writer); | |
| 54 | writer.write(this.toString()); | |
| 55 | out.newLine(); | |
| 56 | writer.close(); | |
| 57 | } catch (IOException ex) {
| |
| 58 | System.out.println("Cannot write to file!");
| |
| 59 | } | |
| 60 | } | |
| 61 | ||
| 62 | } | |
| 63 | ||
| 64 | class FiguresFiles {
| |
| 65 | class AreaCompare implements Comparator<FigureGeneral> {
| |
| 66 | ||
| 67 | @Override | |
| 68 | public int compare(FigureGeneral figure1, FigureGeneral figure2) {
| |
| 69 | return figure1.area().compareTo(figure2.area()); | |
| 70 | } | |
| 71 | ||
| 72 | } | |
| 73 | ||
| 74 | class WidthCompare implements Comparator<FigureGeneral> {
| |
| 75 | ||
| 76 | @Override | |
| 77 | public int compare(FigureGeneral figure1, FigureGeneral figure2) {
| |
| 78 | return figure1.getWidth().compareTo(figure2.getWidth()); | |
| 79 | } | |
| 80 | ||
| 81 | } | |
| 82 | ||
| 83 | class HeightCompare implements Comparator<FigureGeneral> {
| |
| 84 | ||
| 85 | @Override | |
| 86 | public int compare(FigureGeneral figure1, FigureGeneral figure2) {
| |
| 87 | return figure1.getHeight().compareTo(figure2.getHeight()); | |
| 88 | } | |
| 89 | ||
| 90 | } | |
| 91 | ||
| 92 | private ArrayList<FigureGeneral> process() | |
| 93 | throws FigureGeneralFilesFoundException {
| |
| 94 | ArrayList<FigureGeneral> globalSb = new ArrayList<FigureGeneral>(); | |
| 95 | try {
| |
| 96 | String pathToScan = new File(".").getCanonicalPath()
| |
| 97 | + "/serialized"; | |
| 98 | File folderToScan = new File(pathToScan); | |
| 99 | File[] listOfFiles = folderToScan.listFiles(); | |
| 100 | for (int i = 0; i < listOfFiles.length; i++) {
| |
| 101 | if (listOfFiles[i].isFile()) {
| |
| 102 | String targetFile = listOfFiles[i].getName(); | |
| 103 | if (targetFile.startsWith("Triangle")
| |
| 104 | || targetFile.startsWith("Rectangle")) {
| |
| 105 | globalSb.add(getObjectFromFile(targetFile)); | |
| 106 | } | |
| 107 | } | |
| 108 | } | |
| 109 | if (listOfFiles.length == 0) {
| |
| 110 | throw new FigureGeneralFilesFoundException( | |
| 111 | "No figure files of type found."); | |
| 112 | } | |
| 113 | } catch (IOException e) {
| |
| 114 | System.out.println("Wrong input!");
| |
| 115 | } | |
| 116 | return globalSb; | |
| 117 | } | |
| 118 | ||
| 119 | private ArrayList<FigureGeneral> process(String order) | |
| 120 | throws FigureGeneralFilesFoundException {
| |
| 121 | ArrayList<FigureGeneral> globalSb = new ArrayList<FigureGeneral>(); | |
| 122 | try {
| |
| 123 | String pathToScan = new File(".").getCanonicalPath()
| |
| 124 | + "/serialized"; | |
| 125 | File folderToScan = new File(pathToScan); | |
| 126 | File[] listOfFiles = folderToScan.listFiles(); | |
| 127 | for (int i = 0; i < listOfFiles.length; i++) {
| |
| 128 | if (listOfFiles[i].isFile()) {
| |
| 129 | String targetFile = listOfFiles[i].getName(); | |
| 130 | if (targetFile.startsWith("Triangle")
| |
| 131 | || targetFile.startsWith("Rectangle")) {
| |
| 132 | globalSb.add(getObjectFromFile(targetFile)); | |
| 133 | } | |
| 134 | } | |
| 135 | } | |
| 136 | if (listOfFiles.length == 0) {
| |
| 137 | throw new FigureGeneralFilesFoundException( | |
| 138 | "No figure files of type found."); | |
| 139 | } | |
| 140 | } catch (IOException e) {
| |
| 141 | System.out.println("Wrong input!");
| |
| 142 | } | |
| 143 | if (order.equals("area")) {
| |
| 144 | AreaCompare areaCompare = new AreaCompare(); | |
| 145 | Collections.sort(globalSb, areaCompare); | |
| 146 | ||
| 147 | } else if (order.equals("width")) {
| |
| 148 | WidthCompare widthCompare = new WidthCompare(); | |
| 149 | Collections.sort(globalSb, widthCompare); | |
| 150 | ||
| 151 | } else if (order.equals("height")) {
| |
| 152 | HeightCompare heighCompare = new HeightCompare(); | |
| 153 | Collections.sort(globalSb, heighCompare); | |
| 154 | } | |
| 155 | return globalSb; | |
| 156 | } | |
| 157 | ||
| 158 | private FigureGeneral getObjectFromFile(String fileName) {
| |
| 159 | String line = null; | |
| 160 | ArrayList<String> myArr = new ArrayList<String>(); | |
| 161 | fileName = "./serialized/" + fileName; | |
| 162 | FigureGeneral figure = null; | |
| 163 | while (true) {
| |
| 164 | try {
| |
| 165 | File myFile = new File(fileName); | |
| 166 | FileReader fileReader = new FileReader(myFile); | |
| 167 | BufferedReader reader = new BufferedReader(fileReader); | |
| 168 | while ((line = reader.readLine()) != null) {
| |
| 169 | myArr = new ArrayList<String>( | |
| 170 | Arrays.asList(line.split(" ")));
| |
| 171 | } | |
| 172 | reader.close(); | |
| 173 | if (myArr.get(0).equals("Triangle")) {
| |
| 174 | figure = new Triangle(Double.parseDouble(myArr.get(1)), | |
| 175 | Double.parseDouble(myArr.get(2))); | |
| 176 | } else {
| |
| 177 | figure = new Rectangle(Double.parseDouble(myArr.get(1)), | |
| 178 | Double.parseDouble(myArr.get(2))); | |
| 179 | } | |
| 180 | ||
| 181 | break; | |
| 182 | } catch (FileNotFoundException ex) {
| |
| 183 | System.out | |
| 184 | .println("File with specified name cannot be found, please try again "
| |
| 185 | + fileName); | |
| 186 | break; | |
| 187 | } catch (IOException e) {
| |
| 188 | System.out.println("Wrong input!");
| |
| 189 | break; | |
| 190 | } catch (IllegalArgumentException e) {
| |
| 191 | e.printStackTrace(); | |
| 192 | break; | |
| 193 | } catch (SecurityException e) {
| |
| 194 | e.printStackTrace(); | |
| 195 | break; | |
| 196 | } | |
| 197 | } | |
| 198 | return figure; | |
| 199 | } | |
| 200 | ||
| 201 | public void execute() {
| |
| 202 | try {
| |
| 203 | System.out.println("Figures:");
| |
| 204 | for (Object figure : process()) {
| |
| 205 | System.out.println(figure); | |
| 206 | } | |
| 207 | } catch (FigureGeneralFilesFoundException ex) {
| |
| 208 | System.out.println(ex.getMessage()); | |
| 209 | } | |
| 210 | } | |
| 211 | ||
| 212 | public void execute(String order) {
| |
| 213 | try {
| |
| 214 | System.out.println("Figures:");
| |
| 215 | for (Object figure : process(order)) {
| |
| 216 | System.out.println(figure); | |
| 217 | } | |
| 218 | } catch (FigureGeneralFilesFoundException ex) {
| |
| 219 | System.out.println(ex.getMessage()); | |
| 220 | } | |
| 221 | } | |
| 222 | } | |
| 223 | ||
| 224 | @SuppressWarnings("serial")
| |
| 225 | class FigureGeneralFilesFoundException extends Exception {
| |
| 226 | public FigureGeneralFilesFoundException() {
| |
| 227 | } | |
| 228 | ||
| 229 | public FigureGeneralFilesFoundException(String message) {
| |
| 230 | super(message); | |
| 231 | } | |
| 232 | } | |
| 233 | ||
| 234 | @SuppressWarnings("serial")
| |
| 235 | class FigureGeneralOperationException extends Exception {
| |
| 236 | public FigureGeneralOperationException() {
| |
| 237 | } | |
| 238 | ||
| 239 | public FigureGeneralOperationException(String message) {
| |
| 240 | super(message); | |
| 241 | } | |
| 242 | } | |
| 243 | ||
| 244 | class Triangle extends FigureGeneral {
| |
| 245 | ||
| 246 | Triangle(Double width, Double height) {
| |
| 247 | super(width, height, "Triangle"); | |
| 248 | } | |
| 249 | ||
| 250 | public Double area() {
| |
| 251 | return (getWidth() * getHeight()) / 2; | |
| 252 | } | |
| 253 | } | |
| 254 | ||
| 255 | class Rectangle extends FigureGeneral {
| |
| 256 | ||
| 257 | Rectangle(Double width, Double height) {
| |
| 258 | super(width, height, "Rectangle"); | |
| 259 | } | |
| 260 | ||
| 261 | public Double area() {
| |
| 262 | return getWidth() * getHeight(); | |
| 263 | } | |
| 264 | ||
| 265 | } | |
| 266 | ||
| 267 | public class AbsFigure {
| |
| 268 | ||
| 269 | FiguresFiles figureFile = new FiguresFiles(); | |
| 270 | ||
| 271 | public static void main(String[] args) {
| |
| 272 | AbsFigure absFigure = new AbsFigure(); | |
| 273 | absFigure.askUserOperstions(); | |
| 274 | } | |
| 275 | ||
| 276 | private void askUserNumbers() {
| |
| 277 | BufferedReader bufferedReader = new BufferedReader( | |
| 278 | new InputStreamReader(System.in)); | |
| 279 | double height, width; | |
| 280 | Integer figureNum; | |
| 281 | FigureGeneral figure = null; | |
| 282 | while (true) {
| |
| 283 | try {
| |
| 284 | System.out | |
| 285 | - | .println("Please enter a figure number, \n 1.Triangle\n2.Rectangle");
|
| 285 | + | .println("Please enter a figure number, \n" +
|
| 286 | "1.Triangle\n" + | |
| 287 | "2.Rectangle"); | |
| 288 | figureNum = Integer.parseInt(bufferedReader.readLine()); | |
| 289 | if(figureNum != 1 & figureNum != 2) {
| |
| 290 | throw new FigureGeneralOperationException( | |
| 291 | "Please choose number from the list!"); | |
| 292 | } | |
| 293 | System.out.println("Please enter a height :");
| |
| 294 | height = Double.parseDouble(bufferedReader.readLine()); | |
| 295 | System.out.println("Please enter a width :");
| |
| 296 | width = Double.parseDouble(bufferedReader.readLine()); | |
| 297 | ||
| 298 | if (figureNum.equals(1)) {
| |
| 299 | figure = new Triangle(width, height); | |
| 300 | } else if (figureNum.equals(2)) {
| |
| 301 | figure = new Rectangle(width, height); | |
| 302 | } | |
| 303 | figure.toFile(); | |
| 304 | System.out.println("Thank you!");
| |
| 305 | break; | |
| 306 | } catch (NumberFormatException e) {
| |
| 307 | System.out.println("Wrong number!");
| |
| 308 | } catch (IOException e) {
| |
| 309 | System.out.println("Wrong input!");
| |
| 310 | } catch (FigureGeneralOperationException e) {
| |
| 311 | System.out.println("Wrong type!");
| |
| 312 | } | |
| 313 | } | |
| 314 | } | |
| 315 | ||
| 316 | public void askUserOperstions() {
| |
| 317 | File theDir = new File("./serialized");
| |
| 318 | if (!theDir.exists()) | |
| 319 | theDir.mkdir(); | |
| 320 | Integer operationNum; | |
| 321 | BufferedReader bufferedReader = new BufferedReader( | |
| 322 | new InputStreamReader(System.in)); | |
| 323 | ||
| 324 | askUserOperstions:while (true) {
| |
| 325 | - | .println("Please choose next operation: \n 1.Print figures\n2.Create new figure\n3.Exit program");
|
| 325 | + | |
| 326 | System.out | |
| 327 | - | if (operationNum.equals(1)) {
|
| 327 | + | .println("Please choose next operation: \n" +
|
| 328 | - | askUserSort(); |
| 328 | + | "1.Print figures\n" + |
| 329 | - | } else if (operationNum.equals(2)) {
|
| 329 | + | "2.Create new figure\n" + |
| 330 | - | askUserNumbers(); |
| 330 | + | "3.Exit program"); |
| 331 | - | } else if (operationNum.equals(3)) {
|
| 331 | + | |
| 332 | - | break; |
| 332 | + | switch (operationNum) {
|
| 333 | case 1: askUserSort(); | |
| 334 | break; | |
| 335 | case 2: askUserNumbers(); | |
| 336 | break; | |
| 337 | case 3: break askUserOperstions; | |
| 338 | default: throw new FigureGeneralOperationException( | |
| 339 | "Please choose number from the list!"); | |
| 340 | } | |
| 341 | } catch (NumberFormatException e) {
| |
| 342 | System.out.println("Wrong number!");
| |
| 343 | } catch (IOException e) {
| |
| 344 | System.out.println("Wrong input!");
| |
| 345 | } catch (FigureGeneralOperationException e) {
| |
| 346 | System.out.println("Wrong type!");
| |
| 347 | } | |
| 348 | } | |
| 349 | } | |
| 350 | ||
| 351 | private void askUserSort() {
| |
| 352 | Integer operationNum; | |
| 353 | BufferedReader bufferedReader = new BufferedReader( | |
| 354 | - | .println("Please choose next operation: \n 1.Print figures as is \n2.Order by area \n"
|
| 354 | + | |
| 355 | - | + "3.Order by width\n4.Order by height\n5.Exit"); |
| 355 | + | askUserSort:while (true) {
|
| 356 | try {
| |
| 357 | - | if (operationNum == 1) {
|
| 357 | + | |
| 358 | - | figureFile.execute(); |
| 358 | + | .println("Please choose next operation: \n" +
|
| 359 | - | } else if (operationNum == 2) {
|
| 359 | + | "1.Print figures as is\n" + |
| 360 | - | figureFile.execute("area");
|
| 360 | + | "2.Order by area \n"+ |
| 361 | - | } else if (operationNum == 3) {
|
| 361 | + | "3.Order by width\n" + |
| 362 | - | figureFile.execute("width");
|
| 362 | + | "4.Order by height\n" + |
| 363 | - | } else if (operationNum == 4) {
|
| 363 | + | "5.Exit"); |
| 364 | - | figureFile.execute("height");
|
| 364 | + | |
| 365 | - | } else if (operationNum == 5) {
|
| 365 | + | switch (operationNum) {
|
| 366 | - | break; |
| 366 | + | case 1: figureFile.execute(); |
| 367 | break; | |
| 368 | case 2: figureFile.execute("area");
| |
| 369 | break; | |
| 370 | case 3: figureFile.execute("width");
| |
| 371 | break; | |
| 372 | case 4: figureFile.execute("height");
| |
| 373 | break; | |
| 374 | case 5: break askUserSort; | |
| 375 | default: throw new FigureGeneralOperationException( | |
| 376 | "Please choose number from the list!"); | |
| 377 | } | |
| 378 | } catch (NumberFormatException e) {
| |
| 379 | System.out.println("Wrong number!");
| |
| 380 | } catch (IOException e) {
| |
| 381 | System.out.println("Wrong input!");
| |
| 382 | } catch (FigureGeneralOperationException e) {
| |
| 383 | System.out.println("Wrong type!");
| |
| 384 | } | |
| 385 | } | |
| 386 | } | |
| 387 | ||
| 388 | } |