Cohort4.2
/
ArraysGoneWild
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4 ändrade filer med 358 tillägg och 64 borttagningar
Delad Vy Visa Diff Statistik
  1. 1
    1
      .idea/compiler.xml
  2. 77
    56
      .idea/workspace.xml
  3. 115
    7
      arraz/src/main/java/Arraz.java
  4. 165
    0
      arraz/src/test/java/ArrazTest.java

+ 1
- 1
.idea/compiler.xml Visa fil 

@@ -9,7 +9,7 @@
9 9 
         <module name="arraz" />
10 10 
       </profile>
11 11 
     </annotationProcessing>
12 
-    <bytecodeTargetLevel>
12 
+    <bytecodeTargetLevel target="8">
13 13 
       <module name="arraz" target="8" />
14 14 
     </bytecodeTargetLevel>
15 15 
   </component>

+ 77
- 56
.idea/workspace.xml Visa fil 

@@ -2,9 +2,7 @@
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-      <change beforePath="$PROJECT_DIR$/arraz/pom.xml" beforeDir="false" afterPath="$PROJECT_DIR$/arraz/pom.xml" afterDir="false" />
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+      <change beforePath="$PROJECT_DIR$/.idea/compiler.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/compiler.xml" afterDir="false" />
8 6 
       <change beforePath="$PROJECT_DIR$/arraz/src/main/java/Arraz.java" beforeDir="false" afterPath="$PROJECT_DIR$/arraz/src/main/java/Arraz.java" afterDir="false" />
9 7 
       <change beforePath="$PROJECT_DIR$/arraz/src/test/java/ArrazTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/arraz/src/test/java/ArrazTest.java" afterDir="false" />
10 8 
     </list>
 
@@ -28,52 +26,56 @@
28 26 
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44 42 
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+      </file>
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+      <file pinned="false" current-in-tab="false">
73 75 
         <entry file="file://$PROJECT_DIR$/arraz/src/test/java/ArrazTest.java">
74 76 
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77 79 
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79 81 
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@@ -103,6 +105,11 @@
103 105 
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108 115 
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@@ -281,7 +288,7 @@
281 288 
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282 289 
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@@ -289,7 +296,7 @@
289 296 
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-    <property name="settings.editor.selected.configurable" value="Errors" />
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+    <property name="settings.editor.selected.configurable" value="reference.projectsettings.compiler.javacompiler" />
293 300 
   </component>
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     <key name="CreateTestDialog.RecentsKey">
 
@@ -314,7 +321,7 @@
314 321 
       </list>
315 322 
     </option>
316 323 
   </component>
317 
-  <component name="RunManager" selected="JUnit.ArrazTest.test1RemoveDupesFromArray">
324 
+  <component name="RunManager" selected="JUnit.ArrazTest">
318 325 
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319 326 
       <option name="POLICY_FILE" value="$APPLICATION_HOME_DIR$/bin/appletviewer.policy" />
320 327 
       <method v="2">
 
@@ -336,22 +343,22 @@
336 343 
         <option name="Make" enabled="true" />
337 344 
       </method>
338 345 
     </configuration>
339 
-    <configuration name="ArrazTest.test1CopyArrayByInterator" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
346 
+    <configuration name="ArrazTest.test1RemoveDupesFromArray" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
340 347 
       <module name="arraz" />
341 348 
       <option name="PACKAGE_NAME" value="" />
342 349 
       <option name="MAIN_CLASS_NAME" value="ArrazTest" />
343 
-      <option name="METHOD_NAME" value="test1CopyArrayByInterator" />
350 
+      <option name="METHOD_NAME" value="test1RemoveDupesFromArray" />
344 351 
       <option name="TEST_OBJECT" value="method" />
345 352 
       <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
346 353 
       <method v="2">
347 354 
         <option name="Make" enabled="true" />
348 355 
       </method>
349 356 
     </configuration>
350 
-    <configuration name="ArrazTest.test1RemoveDupesFromArray" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
357 
+    <configuration name="ArrazTest.test1RemoveLastItemAndCopy" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
351 358 
       <module name="arraz" />
352 359 
       <option name="PACKAGE_NAME" value="" />
353 360 
       <option name="MAIN_CLASS_NAME" value="ArrazTest" />
354 
-      <option name="METHOD_NAME" value="test1RemoveDupesFromArray" />
361 
+      <option name="METHOD_NAME" value="test1RemoveLastItemAndCopy" />
355 362 
       <option name="TEST_OBJECT" value="method" />
356 363 
       <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
357 364 
       <method v="2">
 
@@ -369,6 +376,17 @@
369 376 
         <option name="Make" enabled="true" />
370 377 
       </method>
371 378 
     </configuration>
379 
+    <configuration name="ArrazTest.test2RemoveLastItemAndCopy" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
380 
+      <module name="arraz" />
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+      <option name="PACKAGE_NAME" value="" />
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+      <option name="MAIN_CLASS_NAME" value="ArrazTest" />
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+      <option name="METHOD_NAME" value="test2RemoveLastItemAndCopy" />
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+      <option name="TEST_OBJECT" value="method" />
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+      <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
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+        <option name="Make" enabled="true" />
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+      </method>
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+    </configuration>
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     <configuration default="true" type="JUnit" factoryName="JUnit">
373 391 
       <option name="WORKING_DIRECTORY" value="%MODULE_WORKING_DIR%" />
374 392 
       <method v="2">
 
@@ -394,16 +412,18 @@
394 412 
     </configuration>
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396 414 
       <item itemvalue="JUnit.ArrazTest" />
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-      <item itemvalue="JUnit.ArrazTest.test1CopyArrayByInterator" />
398 415 
       <item itemvalue="JUnit.ArrazTest.test2CopyArrayByInterator" />
399 416 
       <item itemvalue="JUnit.ArrazTest.test1RemoveDupesFromArray" />
417 
+      <item itemvalue="JUnit.ArrazTest.test1RemoveLastItemAndCopy" />
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+      <item itemvalue="JUnit.ArrazTest.test2RemoveLastItemAndCopy" />
400 419 
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401 420 
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402 421 
       <list>
403 422 
         <item itemvalue="JUnit.ArrazTest" />
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+        <item itemvalue="JUnit.ArrazTest.test1RemoveLastItemAndCopy" />
404 425 
         <item itemvalue="JUnit.ArrazTest.test1RemoveDupesFromArray" />
405 426 
         <item itemvalue="JUnit.ArrazTest.test2CopyArrayByInterator" />
406 
-        <item itemvalue="JUnit.ArrazTest.test1CopyArrayByInterator" />
407 427 
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408 428 
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409 429 
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@@ -422,7 +442,7 @@
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@@ -435,44 +455,45 @@
435 455 
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451 471 
       <configuration name="ArrazTest" configurationId="JUnit" />
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454 474 
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-    <history-entry file="ArrazTest - 2018.12.07 at 08h 36m 40s.xml">
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457 477 
       <configuration name="ArrazTest" configurationId="JUnit" />
458 478 
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-    <history-entry file="ArrazTest - 2018.12.07 at 08h 38m 07s.xml">
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460 480 
       <configuration name="ArrazTest" configurationId="JUnit" />
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-    <history-entry file="ArrazTest - 2018.12.07 at 09h 15m 22s.xml">
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463 483 
       <configuration name="ArrazTest" configurationId="JUnit" />
464 484 
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-    <history-entry file="ArrazTest - 2018.12.07 at 09h 36m 49s.xml">
485 
+    <history-entry file="ArrazTest - 2018.12.07 at 18h 30m 20s.xml">
466 486 
       <configuration name="ArrazTest" configurationId="JUnit" />
467 487 
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   <component name="TimeTrackingManager">
470 
-    <option name="totallyTimeSpent" value="25011000" />
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   <component name="ToolWindowManager">
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     <frame x="0" y="23" width="1280" height="709" extended-state="0" />
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-      <window_info content_ui="combo" id="Project" order="0" weight="0.18659128" />
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@@ -481,8 +502,8 @@
481 502 
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@@ -550,16 +571,16 @@
550 571 
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557 581 
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558 582 
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559 583 
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@@ -572,8 +593,8 @@
572 593 
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577 598 
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579 600 
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@@ -582,12 +603,12 @@
582 603 
     </entry>
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591 612 
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592 613 
         </state>
593 614 
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+ 115
- 7
arraz/src/main/java/Arraz.java Visa fil 

@@ -123,9 +123,19 @@ public class Arraz {
123 123 
     }
124 124
125 125 
     public int[] removeDupesFromArray(int[] arr) {
126 
-       // ArrayList<Integer> list = new ArrayList<Integer>(Arrays.asList(arr));
127 
-       // return newArr;
128 
-        return null;
126 
+        ArrayList<Integer> list = new ArrayList<>();
127 
+        for(int n : arr) {
128 
+            if(!list.contains(n))
129 
+                list.add(n);
130 
+        }
131 
+        arr = new int[list.size()];
132 
+        int index = 0;
133 
+        for(int n : list) {
134 
+            arr[index] = list.get(index);
135 
+            index++;
136 
+        }
137 
+        //return newArr;
138 
+        return arr;
129 139 
     }
130 140
131 141 
     public int find2ndLargestValueFromArray(int[] arr) {
 
@@ -182,11 +192,109 @@ public class Arraz {
182 192 
     }
183 193
184 194 
     public boolean arrayHas65and77(int[] arr) {
185 
-        for(int n : arr) {
186 
-            if (n != 65 || n != 77)
187 
-                return false;
195 
+        ArrayList<Integer> list = new ArrayList<>();
196 
+        for(int n : arr)
197 
+            list.add(n);
198 
+
199 
+        if(list.contains(65) && list.contains(77))
200 
+            return true;
201 
+        else return false;
202 
+    }
203 
+
204 
+
205 
+    public boolean theTotalofTensIs30(int[] arr) {
206 
+        int sum = 0;
207 
+        for(int n : arr){
208 
+            if(n == 10)
209 
+                sum += n;
188 210 
         }
189 
-        return true;
211 
+
212 
+        if(sum == 30)
213 
+            return true;
214 
+        else return false;
215 
+    }
216 
+
217 
+    public int[] smallestAndSecondSmallest(int[] arr) {
218 
+        int smallest = Integer.MAX_VALUE;
219 
+        int secondSmallest = smallest;
220 
+        for(int n : arr){
221 
+            if(n < smallest) {
222 
+                secondSmallest = smallest;
223 
+                smallest = n;
224 
+            }
225 
+            else if(n < secondSmallest)
226 
+                secondSmallest = smallest;
227 
+        }
228 
+       return new int[]{smallest, secondSmallest};
229 
+    }
230 
+
231 
+    public int[] makeMeACopyPlease(int[] arr) {
232 
+        int[] cpyArr = Arrays.copyOf(arr,arr.length);
233 
+        int[] revArr = new int[cpyArr.length];
234 
+        int index = 0;
235 
+        for(int i = arr.length - 1; i >= 0; i--){
236 
+            revArr[index] = arr[i];
237 
+            index++;
238 
+        }
239 
+        return revArr;
190 240 
     }
191 241
242 
+    public int[] removeLastItemAndCopy(int[] arr) {
243 
+        int[] newArr = new int[arr.length-1];
244 
+        for(int i = 0;i<arr.length-1;i++){
245 
+            newArr[i] = arr[i];
246 
+        }
247 
+        return newArr;
248 
+    }
249 
+
250 
+    public int[] removeFirstItemAndCopy(int[] arr) {
251 
+        int[] newArr = new int[arr.length-1];
252 
+
253 
+        for(int i = 1; i<arr.length; i++){
254 
+            newArr[i-1] = arr[i];
255 
+        }
256 
+        return newArr;
257 
+    }
258 
+
259 
+    public int[] insertAtStartAndCopy(int[] arr, int n) {
260 
+        int[] newArr = new int[arr.length+1];
261 
+        newArr[0] = n;
262 
+        for(int i = 0; i<arr.length; i++){
263 
+            newArr[i+1] = arr[i];
264 
+        }
265 
+        return newArr;
266 
+    }
267 
+
268 
+    public int[] insertAtEndAndCopy(int[] arr, int n) {
269 
+        int[] newArr = new int[arr.length+1];
270 
+        newArr[newArr.length-1] = n;
271 
+        for(int i = 0; i<arr.length; i++){
272 
+            newArr[i] = arr[i];
273 
+        }
274 
+        return newArr;
275 
+    }
276 
+
277 
+    public int[] sortArrayIntoEvensThenOdds(int[] arr) {
278 
+        Arrays.sort(arr);
279 
+
280 
+        int[] sortedArr = new int[arr.length];
281 
+        List<Integer> evens = new ArrayList<>();
282 
+        List<Integer> odds = new ArrayList<>();
283 
+
284 
+        for(int i = 0;i<arr.length;i++){
285 
+            if(arr[i] %2 == 0)
286 
+                evens.add(arr[i]);
287 
+            else
288 
+                odds.add(arr[i]);
289 
+        }
290 
+
291 
+        evens.addAll(odds);
292 
+        for(int i = 0;i<arr.length;i++){
293 
+            sortedArr[i] = evens.get(i);
294 
+        }
295 
+
296 
+        return sortedArr;
297 
+    }
298 
+
299 
+
192 300 
 }

+ 165
- 0
arraz/src/test/java/ArrazTest.java Visa fil 

@@ -382,4 +382,169 @@ public class ArrazTest {
382 382 
                 boolean actual = arraz.arrayHas65and77(arr);
383 383 
                 Assert.assertEquals(expected, actual);
384 384 
             }
385 
+
386 
+            @Test
387 
+            public void test1TheTotalofTensIs30(){
388 
+                int[] arr = new int[]{65,10,9,10, 10,77};
389 
+                boolean expected = true;
390 
+                boolean actual = arraz.theTotalofTensIs30(arr);
391 
+                Assert.assertEquals(expected, actual);
392 
+            }
393 
+
394 
+            @Test
395 
+            public void test2TheTotalofTensIs30(){
396 
+                int[] arr = new int[]{51,83,96, 10};
397 
+                boolean expected = false;
398 
+                boolean actual = arraz.theTotalofTensIs30(arr);
399 
+                Assert.assertEquals(expected, actual);
400 
+            }
401 
+
402 
+            @Test
403 
+            public void test1FindSmallestAndSecondSmallest(){
404 
+                int[] arr = new int[]{5,3,1,8};
405 
+                int[] expected = {1,3};
406 
+                int[] actual = arraz.smallestAndSecondSmallest(arr);
407 
+                Assert.assertEquals(expected.length, actual.length);
408 
+                Assert.assertEquals(expected[0], actual[0]);
409 
+                Assert.assertEquals(expected[1], actual[1]);
410 
+            }
411 
+
412 
+            @Test
413 
+            public void test2FindSmallestAndSecondSmallest(){
414 
+                int[] arr = new int[]{50,9,13,5,8};
415 
+                int[] expected = {5, 9};
416 
+                int[] actual = arraz.smallestAndSecondSmallest(arr);
417 
+                Assert.assertEquals(expected.length, actual.length);
418 
+            }
419 
+
420 
+            @Test
421 
+            public void test1MakeMeACopyPlease(){
422 
+                int[] arr = new int[]{5,3,1};
423 
+                int[] expected = {1,3,5};
424 
+                int[] actual = arraz.makeMeACopyPlease(arr);
425 
+                Assert.assertEquals(expected.length, actual.length);
426 
+                Assert.assertEquals(expected[0], actual[0]);
427 
+                Assert.assertEquals(expected[1], actual[1]);
428 
+                Assert.assertEquals(expected[2], actual[2]);
429 
+            }
430 
+
431 
+            @Test
432 
+            public void test2MakeMeACopyPlease(){
433 
+                int[] arr = new int[]{50,9};
434 
+                int[] expected = {9, 50};
435 
+                int[] actual = arraz.makeMeACopyPlease(arr);
436 
+                Assert.assertEquals(expected.length, actual.length);
437 
+                Assert.assertEquals(expected[0], actual[0]);
438 
+                Assert.assertEquals(expected[1], actual[1]);
439 
+            }
440 
+
441 
+            @Test
442 
+            public void test1RemoveLastItemAndCopy(){
443 
+                int[] arr = new int[]{5,3,1,6};
444 
+                int[] expected = {5,3,1};
445 
+                int[] actual = arraz.removeLastItemAndCopy(arr);
446 
+                Assert.assertEquals(expected.length, actual.length);
447 
+                Assert.assertEquals(expected[0], actual[0]);
448 
+                Assert.assertEquals(expected[1], actual[1]);
449 
+                Assert.assertEquals(expected[2], actual[2]);
450 
+            }
451 
+
452 
+            @Test
453 
+            public void test2RemoveLastItemAndCopy(){
454 
+                int[] arr = new int[]{50,9, 8};
455 
+                int[] expected = {50, 9};
456 
+                int[] actual = arraz.removeLastItemAndCopy(arr);
457 
+                Assert.assertEquals(expected.length, actual.length);
458 
+                Assert.assertEquals(expected[0], actual[0]);
459 
+                Assert.assertEquals(expected[1], actual[1]);
460 
+            }
461 
+
462 
+            @Test
463 
+            public void test1RemoveFirstItemAndCopy(){
464 
+                int[] arr = new int[]{5,3,1,6};
465 
+                int[] expected = {3,1, 6};
466 
+                int[] actual = arraz.removeFirstItemAndCopy(arr);
467 
+                Assert.assertEquals(expected.length, actual.length);
468 
+                Assert.assertEquals(expected[0], actual[0]);
469 
+                Assert.assertEquals(expected[1], actual[1]);
470 
+                Assert.assertEquals(expected[2], actual[2]);
471 
+            }
472 
+
473 
+            @Test
474 
+            public void test2RemoveFirstItemAndCopy(){
475 
+                int[] arr = new int[]{50,9, 8};
476 
+                int[] expected = {9, 8};
477 
+                int[] actual = arraz.removeFirstItemAndCopy(arr);
478 
+                Assert.assertEquals(expected.length, actual.length);
479 
+                Assert.assertEquals(expected[0], actual[0]);
480 
+                Assert.assertEquals(expected[1], actual[1]);
481 
+            }
482 
+
483 
+            @Test
484 
+            public void test1InsertAtStartAndCopy(){
485 
+                int[] arr = new int[]{50,9, 8};
486 
+                int[] expected = {3,50,9, 8};
487 
+                int[] actual = arraz.insertAtStartAndCopy(arr, 3);
488 
+                Assert.assertEquals(expected.length, actual.length);
489 
+                Assert.assertEquals(expected[0], actual[0]);
490 
+                Assert.assertEquals(expected[1], actual[1]);
491 
+                Assert.assertEquals(expected[2], actual[2]);
492 
+                Assert.assertEquals(expected[3], actual[3]);
493 
+            }
494 
+
495 
+            @Test
496 
+            public void test2InsertAtStartAndCopy(){
497 
+                int[] arr = new int[]{98, 34};
498 
+                int[] expected = {73,98,34};
499 
+                int[] actual = arraz.insertAtStartAndCopy(arr, 73);
500 
+                Assert.assertEquals(expected.length, actual.length);
501 
+                Assert.assertEquals(expected[0], actual[0]);
502 
+                Assert.assertEquals(expected[1], actual[1]);
503 
+                Assert.assertEquals(expected[2], actual[2]);
504 
+            }
505 
+
506 
+            @Test
507 
+            public void test1InsertAtEndAndCopy(){
508 
+                int[] arr = new int[]{50,9, 8};
509 
+                int[] expected = {50,9, 8, 3};
510 
+                int[] actual = arraz.insertAtEndAndCopy(arr, 3);
511 
+                Assert.assertEquals(expected.length, actual.length);
512 
+                Assert.assertEquals(expected[0], actual[0]);
513 
+                Assert.assertEquals(expected[1], actual[1]);
514 
+                Assert.assertEquals(expected[2], actual[2]);
515 
+                Assert.assertEquals(expected[3], actual[3]);
516 
+            }
517 
+
518 
+            @Test
519 
+            public void test2InsertAtEndAndCopy(){
520 
+                int[] arr = new int[]{98, 34};
521 
+                int[] expected = {98,34,73};
522 
+                int[] actual = arraz.insertAtEndAndCopy(arr, 73);
523 
+                Assert.assertEquals(expected.length, actual.length);
524 
+                Assert.assertEquals(expected[0], actual[0]);
525 
+                Assert.assertEquals(expected[1], actual[1]);
526 
+                Assert.assertEquals(expected[2], actual[2]);
527 
+            }
528 
+
529 
+            @Test
530 
+            public void test1SortArrayIntoEvensThenOdds(){
531 
+               int[] arr = new int[]{5,3,1,6,4};
532 
+               int[] expected = {4,6,1,3,5};
533 
+               int[] actual = arraz.sortArrayIntoEvensThenOdds(arr);
534 
+               Assert.assertEquals(expected.length, actual.length);
535 
+               Assert.assertEquals(expected[0], actual[0]);
536 
+               Assert.assertEquals(expected[1], actual[1]);
537 
+               Assert.assertEquals(expected[2], actual[2]);
538 
+            }
539 
+
540 
+            @Test
541 
+            public void test2SortArrayIntoEvensThenOdds(){
542 
+              int[] arr = new int[]{9,3,2,6};
543 
+              int[] expected = {2, 6, 3, 9};
544 
+              int[] actual = arraz.sortArrayIntoEvensThenOdds(arr);
545 
+              Assert.assertEquals(expected.length, actual.length);
546 
+              Assert.assertEquals(expected[0], actual[0]);
547 
+              Assert.assertEquals(expected[1], actual[1]);
548 
+              Assert.assertEquals(expected[2], actual[2]);
549 
+            }
385 550 
 }