Keith Brinker преди 6 години
родител
ревизия
dfff8188ac
променени са 2 файла, в които са добавени 114 реда и са изтрити 51 реда
  1. 64
    1
      src/main/java/TableNested/TableNested.java
  2. 50
    50
      src/test/java/TableNested/TableNestedTest.java

+ 64
- 1
src/main/java/TableNested/TableNested.java Целия файл

@@ -1,5 +1,4 @@
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 package TableNested;
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-
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 import java.util.ArrayList;
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 /**
@@ -7,5 +6,69 @@ import java.util.ArrayList;
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  * Think about how nested classes should work with generics.
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  */
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 public class TableNested<K, V> {
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+    private ArrayList<Entry> entries;
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+
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+    public TableNested() {
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+        this.entries = new ArrayList<Entry>();
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+    }
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+
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+    public class Entry<K, V> {
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+        private K key;
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+        private V value;
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+
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+        public Entry(K key, V value) {
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+            this.key = key;
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+            this.value = value;
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+        }
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+
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+        public K getKey() {
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+            return key;
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+        }
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+
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+        public V getValue() {
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+            return value;
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+        }
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+
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+        public void setKey(K key){
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+            this.key = key;
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+        }
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+
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+        public void setValue(V value){
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+            this.value = value;
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+        }
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+
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+    }
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+
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+
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+
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+
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+
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+    public V get(K key) {
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+        for (int i = 0; i < entries.size(); i++){
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+            if (entries.get(i).getKey().equals(key)){
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+                return (V)entries.get(i).getValue();
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+            }
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+
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+        }
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+        return null;
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+    }
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+
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+    public void put(K key, V value) {
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+        for (int i =0; i < entries.size(); i++){
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+            if (entries.get(i).getKey().equals(key)){
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+                System.out.println("Error, already exists");
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+            }
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+            entries.get(i).setKey(key);
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+            entries.get(i).setValue(value);
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+        }
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+        entries.add(new Entry(key, value));
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+    }
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+    public void remove(K key) {
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+        for (int i = 0; i < entries.size(); i++){
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+            if (entries.get(i).getKey().equals(key)){
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+                entries.remove(i);
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+            }
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+        }
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+    }
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 }

+ 50
- 50
src/test/java/TableNested/TableNestedTest.java Целия файл

@@ -1,50 +1,50 @@
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-//package TableNested;
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-//
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-//import org.junit.Assert;
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-//import org.junit.Test;
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-//
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-//public class TableNestedTest {
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-//    @Test
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-//    public void testGetWithoutAnItemReturnsNull() throws Exception {
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-//        // Given an empty table
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-//        TableNested<String, Integer> table = new TableNested<String, Integer>();
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-//        // When we try and get an item then it returns null
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-//        Assert.assertEquals(table.get("foo"), null);
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-//    }
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-//
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-//    @Test
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-//    public void testPutAnItemReturnsAndDoesNotDelete() throws Exception {
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-//        //Given an empty table
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-//        TableNested<String, Integer> table = new TableNested<String, Integer>();
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-//        // When we put an item in it
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-//        table.put("foo", 1);
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-//        // Then we should be able to get it's value
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-//        Assert.assertEquals(table.get("foo"), new Integer(1));
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-//        // And then we should be able to get it again as it wasn't removed
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-//        Assert.assertEquals(table.get("foo"), new Integer(1));
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-//    }
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-//
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-//    @Test
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-//    public void testOverwritingAnItem() throws Exception {
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-//        //Given an empty table
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-//        TableNested<String, Integer> table = new TableNested<String, Integer>();
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-//        // When we put an item in it
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-//        table.put("foo", 1);
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-//        // And we put a new value with the same key
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-//        table.put("foo", 2);
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-//        // Then we should get back the new value
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-//        Assert.assertEquals(table.get("foo"), new Integer(2));
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-//    }
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-//
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-//    @Test
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-//    public void testRemoveAnItem() throws Exception {
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-//        //Given an empty table
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-//        TableNested<String, Integer> table = new TableNested<String, Integer>();
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-//        // When we put an item in it
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-//        table.put("foo", 1);
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-//        // And we remove that item
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-//        table.remove("foo");
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-//        // Then we should get back null for that balue
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-//        Assert.assertEquals(table.get("foo"), null);
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-//    }
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-//}
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+package TableNested;
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+
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+import org.junit.Assert;
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+import org.junit.Test;
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+
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+public class TableNestedTest {
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+    @Test
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+    public void testGetWithoutAnItemReturnsNull() throws Exception {
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+        // Given an empty table
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+        TableNested<String, Integer> table = new TableNested<String, Integer>();
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+        // When we try and get an item then it returns null
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+        Assert.assertEquals(table.get("foo"), null);
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+    }
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+
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+    @Test
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+    public void testPutAnItemReturnsAndDoesNotDelete() throws Exception {
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+        //Given an empty table
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+        TableNested<String, Integer> table = new TableNested<String, Integer>();
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+        // When we put an item in it
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+        table.put("foo", 1);
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+        // Then we should be able to get it's value
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+        Assert.assertEquals(table.get("foo"), new Integer(1));
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+        // And then we should be able to get it again as it wasn't removed
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+        Assert.assertEquals(table.get("foo"), new Integer(1));
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+    }
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+
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+    @Test
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+    public void testOverwritingAnItem() throws Exception {
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+        //Given an empty table
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+        TableNested<String, Integer> table = new TableNested<String, Integer>();
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+        // When we put an item in it
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+        table.put("foo", 1);
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+        // And we put a new value with the same key
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+        table.put("foo", 2);
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+        // Then we should get back the new value
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+        Assert.assertEquals(table.get("foo"), new Integer(2));
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+    }
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+
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+    @Test
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+    public void testRemoveAnItem() throws Exception {
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+        //Given an empty table
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+        TableNested<String, Integer> table = new TableNested<String, Integer>();
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+        // When we put an item in it
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+        table.put("foo", 1);
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+        // And we remove that item
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+        table.remove("foo");
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+        // Then we should get back null for that balue
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+        Assert.assertEquals(table.get("foo"), null);
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+    }
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+}