done

src/main/java/com/zipcodewilmington/looplabs/IntegerDuplicateDeleter.java

@@ -1,8 +1,66 @@
 package com.zipcodewilmington.looplabs;
 
+import java.util.Arrays;
+import java.util.stream.Stream;
+
 /**
  * Created by leon on 1/29/18.
  * @ATTENTION_TO_STUDENTS You are forbidden from modifying the signature of this class.
  */
 public final class IntegerDuplicateDeleter extends DuplicateDeleter<Integer> {
+
+    public IntegerDuplicateDeleter(Integer[] intArray) {
+        super(intArray);
+    }
+
+    @Override //note: README says to remove values that occur AT LEAST. H/e parameter implies AT MOST.
+    public Integer[] removeDuplicates(int maxNumberOfDuplications) {
+        Integer[] array2 = Arrays.copyOf(array, array.length);
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < array2.length; i++) {
+            int count = 1;
+            for (int j = 0; j < array2.length; j++) {
+                if (array2[j].equals(array2[i])) {
+                    count++;
+                }
+            }
+            if (count <= maxNumberOfDuplications)
+                sb.append(array2[i]).append("/");
+        }
+        if (!sb.toString().equals("")) {
+            array2 = getNewArray(sb);
+        }
+        else { array2 = new Integer[0];}
+        return array2;
+    }
+
+    @Override
+    public Integer[] removeDuplicatesExactly(int exactNumberOfDuplications) {
+        StringBuilder sb = new StringBuilder();
+        Integer[] array2 = Arrays.copyOf(array, array.length);
+        for (int i = 0; i < array2.length; i++) {
+            int count = 0;
+            for (int j = 0; j < array2.length; j++) {
+                if (array2[j].equals(array2[i])) {
+                    count++;
+                }
+            }
+            if (count != exactNumberOfDuplications)
+                sb.append(array2[i]).append("/");
+        }
+        if (!sb.toString().equals("")) {
+            array2 = getNewArray(sb);
+        }
+        else { array2 = new Integer[0];}
+        return array2;
+    }
+
+    private Integer[] getNewArray(StringBuilder sb) {
+        Integer[] array2;
+        String[] s = sb.toString().split("/");
+        array2 = new Integer[s.length];
+        for (int i = 0; i < array2.length; i++)
+            array2[i] = Integer.valueOf(s[i]);
+        return array2;
+    }
 }

src/main/java/com/zipcodewilmington/looplabs/StringDuplicateDeleter.java

@@ -1,8 +1,66 @@
 package com.zipcodewilmington.looplabs;
 
+import java.util.Arrays;
+
 /**
  * Created by leon on 1/28/18.
  * @ATTENTION_TO_STUDENTS You are forbidden from modifying the signature of this class.
  */
 public final class StringDuplicateDeleter extends DuplicateDeleter<String> {
+    public StringDuplicateDeleter(String[] intArray) {
+        super(intArray);
+    }
+
+    @Override
+    public String[] removeDuplicates(int maxNumberOfDuplications) {
+        String[] array2 = Arrays.copyOf(array, array.length);
+        StringBuilder sb = new StringBuilder();
+        for (String str1 : array2) {
+            int count = 1;
+
+            for (String str2 : array2)
+                if (str2.equals(str1))
+                    count++;
+
+            if (count <= maxNumberOfDuplications)
+                sb.append(str1).append("/");
+        }
+
+        if (!sb.toString().equals(""))
+            array2 = getNewArray(sb);
+        else array2 = new String[0];
+
+        return array2;
+    }
+
+    @Override
+    public String[] removeDuplicatesExactly(int exactNumberOfDuplications) {
+        StringBuilder sb = new StringBuilder();
+        String[] array2 = Arrays.copyOf(array, array.length);
+        for (String str1 : array2) {
+            int count = 0;
+
+            for (String str2 : array2)
+                if (str2.equals(str1))
+                    count++;
+
+            if (count != exactNumberOfDuplications)
+                sb.append(str1).append("/");
+        }
+
+        if (!sb.toString().equals(""))
+            array2 = getNewArray(sb);
+        else array2 = new String[0];
+
+        return array2;
+    }
+
+    private String[] getNewArray(StringBuilder sb) {
+        String[] array2;
+        String[] s = sb.toString().split("/");
+        array2 = new String[s.length];
+        for (int i = 0; i < array2.length; i++)
+            array2[i] = s[i];
+        return array2;
+    }
 }