Almostttt

src/main/java/rocks/zipcode/io/quiz4/collections/SimpleStringGroup.java

@@ -8,27 +8,16 @@ import java.util.List;
 /**
  * @author leon on 11/12/2018.
  */
-public class SimpleStringGroup implements Iterable, Collection {
-    private String string;
-    private String valueToInsert;
-    private int indexOfValue;
-
-
-    public SimpleStringGroup(String string, String valueToInsert, int indexOfValue) {
-        this.string = string;
-        this.valueToInsert = valueToInsert;
-        this.indexOfValue = indexOfValue;
-    }
+public class SimpleStringGroup implements Iterable {
 
     List<String> list = new ArrayList<>();
-    SimpleStringGroup group = new SimpleStringGroup();
 
     public SimpleStringGroup() {
-        throw new UnsupportedOperationException("Method not yet implemented");
+      //  throw new UnsupportedOperationException("Method not yet implemented");
     }
 
     public Integer count() {
-        return size();
+        return list.size();
     }
 
     public void insert(String string) {
@@ -43,94 +32,22 @@ public class SimpleStringGroup implements Iterable, Collection {
     }
 
     public String fetch(int indexOfValue) {
-      return String.valueOf(list.contains(indexOfValue));
-
+       return list.get(indexOfValue);
     }
 
     public void delete(String valueToInsert) {
-        group.delete(valueToInsert);
-    }
-
-    @Override
-    public int size() {
-        return size();
-    }
-
-    @Override
-    public boolean isEmpty() {
-
-      return list.isEmpty();
-    }
-
-    @Override
-    public boolean contains(Object o) {
-        if(list.equals(o)){
-            return true;
-        }
-        return false;
-    }
-
-    @Override
-    public Object[] toArray() {
-        return new Object[0];
-    }
-
-    @Override
-    public boolean add(Object o) {
-
-        return true;
-    }
-
-    @Override
-    public boolean remove(Object o) {
-        return group.remove(o);
-    }
-
-    @Override
-    public boolean addAll(Collection c) {
-        return group.addAll(c);
-    }
-
-    @Override
-    public boolean retainAll(Collection c) {
-        return group.retainAll(c);
-    }
-
-    @Override
-    public boolean removeAll(Collection c) {
-        return group.removeAll(c);
-    }
-
-    @Override
-    public boolean containsAll(Collection c) {
-        return group.containsAll(c);
-    }
-
-    @Override
-    public Object[] toArray(Object[] a) {
-        return new Object[0];
+        list.remove(valueToInsert);
     }
 
     public void clear() {
-        if (string.equals(valueToInsert)){
-            clear();
-        }
-
-    }
-
-    @Override
-    public String toString() {
-        return "SimpleStringGroup{" +
-                "string='" + string + '\'' +
-                ", valueToInsert='" + valueToInsert + '\'' +
-                ", indexOfValue=" + indexOfValue +
-                '}';
+        list.clear();
     }
 
     @Override
     public Iterator iterator() {
-        return null;
+        return list.iterator();
     }
 
 
+
 }

src/main/java/rocks/zipcode/io/quiz4/collections/ZipCodeWilmington.java

@@ -9,20 +9,25 @@ import java.util.Map;
  */
 public class ZipCodeWilmington {
 
+    ZipCodeWilmington zipCodeWilmington = new ZipCodeWilmington();
+
     private Student student;
     private double numberOfHours;
 
-    public void enroll(Student student) {
+    public String enroll(Student student) {
         this.student = student;
+        return zipCodeWilmington.enroll(student);
     }
 
     public Boolean isEnrolled(Student student) {
-        this.student = student;
-        return null;
+       if(zipCodeWilmington.isEnrolled(student)){
+           return true;
+       }
+        return false;
     }
 
     public void lecture(double numberOfHours) {
-//        this.numberOfHours = numberOfHours;
+        this.numberOfHours = numberOfHours;
 //        double numOfHrsPerLearner = numberOfHours/student.length;
 //
 //        Student[] students;

src/main/java/rocks/zipcode/io/quiz4/fundamentals/StringEvaluator.java

@@ -2,6 +2,7 @@ package rocks.zipcode.io.quiz4.fundamentals;
 
 import com.sun.tools.javac.util.StringUtils;
 
+import java.lang.reflect.Array;
 import java.util.Arrays;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -27,17 +28,26 @@ public class StringEvaluator {
     }
 
     public static String[] getCommonPrefixes(String string1, String string2) {
-        int i = 0;
-        
-        if (string1 == null || string2 == null || string1.length() == 0 || string2.length() == 0) {
-            return new String[]{""};
-        }
-
-        while (i < string1.length() && i < string2.length() && string1.charAt(i) == string2.charAt(i)) {
-            i++;
+        int minLength = Math.min(string1.length(), string2.length());
+        for (int i = 0; i < minLength; i++) {
+            if (string1.charAt(i) != string2.charAt(i)) {
+                return new String[]{string1.substring(0, i)};
+            }
         }
-        return new String[]{string1.substring(0, i)};
+        return new String[]{string1.substring(0, minLength)};
     }
+
+//        int i = 0;
+//
+//        if (string1 == null || string2 == null || string1.length() == 0 || string2.length() == 0) {
+//            return new String[]{""};
+//        }
+//
+//        while (i < string1.length() && i < string2.length() && string1.charAt(i) == string2.charAt(i)) {
+//            i++;
+//        }
+//        return new String[]{string1.substring(0, i)};
+//    }
     
 
     public static String getLargestCommonPrefix(String string1, String string2) {

src/main/java/rocks/zipcode/io/quiz4/generics/GenericUtils.java

@@ -9,7 +9,6 @@ import java.util.TreeSet;
  */
 public class GenericUtils {
     private static Set<? extends Comparable> originalSet;
-//    private static Set<? extends Comparable> originalSet;
 
     public static <_ extends Comparable> Iterable<Iterable<_>> powerSet(Set<_> originalSet) {
         GenericUtils.originalSet = originalSet;

src/main/java/rocks/zipcode/io/quiz4/generics/Group.java

@@ -40,13 +40,19 @@ public class Group<_>{
     }
 
     public Iterator<_> iterator() {
-       List<_> rator = new ArrayList<>();
+       List<_> list = new ArrayList<>();
        Iterator<_> iterator = list.iterator();
         return iterator;
+//       return list.iterator();
     }
 
     public boolean has(_ valueToInsert) {
         return list.contains(valueToInsert);
     }
 
+    @Override
+    public String toString() {
+        return "" +
+                list;
+    }
 }

src/main/java/rocks/zipcode/io/quiz4/generics/MyStack.java

@@ -10,8 +10,6 @@ import java.util.Stack;
 public class MyStack<SomeType> implements Iterable {
     Stack<SomeType> stack = new Stack<>();
 
-//    private SomeType i;
-
     public MyStack() {
 
 //        throw new UnsupportedOperationException("Method not yet implemented");
@@ -27,14 +25,13 @@ public class MyStack<SomeType> implements Iterable {
         return stack.empty();
     }
 
-    public void push(SomeType elementsToBePushed) {
-        stack.push(elementsToBePushed);
-
+    public void push(SomeType i) {
+        stack.push(i);
     }
 
     public SomeType peek() {
-        return stack.peek();
 //        throw new UnsupportedOperationException("Method not yet implemented");
+        return stack.peek();
     }
 
     public SomeType pop() {

src/main/java/rocks/zipcode/io/quiz4/objectorientation/PalindromeObject.java

@@ -1,5 +1,7 @@
 package rocks.zipcode.io.quiz4.objectorientation;
 
+import java.util.Arrays;
+
 /**
  * @author leon on 18/12/2018.
  */
@@ -12,8 +14,16 @@ public class PalindromeObject {
     }
 
     public String[] getAllPalindromes(){
-        return null;
 
+//        String ab = input.replaceAll("[^A-Za-z0-9]", "").toLowerCase();
+//        //System.out.println(ab);
+//
+//        for (int i=0; i<ab.length()/2; i++) {
+//            if(ab.charAt(i) != ab.charAt((ab.length()-1)-i)) {
+//                return input;
+//            }
+//        }
+        return null;
     }
 
     public Boolean isPalindrome(){

src/main/java/rocks/zipcode/io/quiz4/objectorientation/StringAssembler.java

@@ -14,18 +14,20 @@ public class StringAssembler {
     }
 
     public StringAssembler append(String str) {
+
         StringBuilder sb = new StringBuilder();
 
-        String loopDel = " ";
+        String[] temp = str.substring(0, str.length() -1).split(" ");
 
         for (int i = 0; i < str.length(); i++) {
 
-            sb.append(i);
-            sb.append(str);
-
-            loopDel = str;
-            System.out.println(loopDel);
+            sb.append(" \' \' " + str.substring(1));
+//            sb.append(" \n "  + str.substring(i));
+//            sb.append("_" + str.substring(i));
+//            sb.append(" ;"  +  str.substring(i));
         }
+
+        System.out.println(sb);
         return null;
     }
 

src/main/java/rocks/zipcode/io/quiz4/objectorientation/Student.java

@@ -5,13 +5,16 @@ import rocks.zipcode.io.quiz4.collections.ZipCodeWilmington;
 /**
  * @author leon on 11/12/2018.
  */
-public class Student extends ZipCodeWilmington {
+public class Student {
 
     private Integer id;
-    private Double amountOfHours;
+    private Double totalStudyTime = 0.0;
+    private  Double amountOfHours;
 
 
-    public Student(){}
+    public Student(){
+        this(null);
+    }
 
     public Student(Integer id) {
         this.id = id;
@@ -40,12 +43,12 @@ public class Student extends ZipCodeWilmington {
 
 
     public void learn(Double amountOfHours) {
-        this.amountOfHours = amountOfHours;
+        totalStudyTime += amountOfHours;
     }
 
     public Double getTotalStudyTime() {
 
-        return null;
+        return totalStudyTime;
     }
 
 }