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tablenested complete

Amy Gill 6 年之前
父節點
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fd54f06bd4
共有 2 個文件被更改,包括 114 次插入50 次删除
  1. 64
    0
      src/main/java/TableNested/TableNested.java
  2. 50
    50
      src/test/java/TableNested/TableNestedTest.java

+ 64
- 0
src/main/java/TableNested/TableNested.java 查看文件

@@ -8,4 +8,68 @@ import java.util.ArrayList;
8 8
  */
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 public class TableNested<K, V> {
10 10
 
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+    private ArrayList<Entry> entries;
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+
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+    public TableNested() {
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+        entries= new ArrayList<>();
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+    }
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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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+    }
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+
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+
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+    public V get(K key){
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+
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+        V ourLocalVariable = null;
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+
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+
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+        for (Entry element: entries){
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+            if (element.getKey().equals(key)){
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+                ourLocalVariable =(V) element.getValue();
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+            }
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+        }
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+
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+        return ourLocalVariable;
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+
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+    }
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+
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+    public void put(K foo, V i){
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+        Entry ourEntry = new Entry(foo, i);
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+        for (Entry element: entries){
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+            if (element.getKey().equals(ourEntry.getKey())){
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+                entries.set(entries.indexOf(element),ourEntry);
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+            }
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+        }
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+
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+        entries.add(ourEntry);
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+
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+    }
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+
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+    public void remove(K foo){
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+        for (Entry element: entries){
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+            if (element.getKey().equals(foo)){
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+                entries.remove(element);
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+                break;
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+            }
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+        }
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+    }
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+
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+
11 75
 }

+ 50
- 50
src/test/java/TableNested/TableNestedTest.java 查看文件

@@ -1,50 +1,50 @@
1
-//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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+}