Browse Source

MyArrayList isEmpty()

Trinh Tong 6 years ago
parent
commit
3411a5dc35
2 changed files with 31 additions and 4 deletions
  1. 18
    4
      src/main/java/MyArrayList.java
  2. 13
    0
      src/test/java/MyArrayListTest.java

+ 18
- 4
src/main/java/MyArrayList.java View File

@@ -16,13 +16,17 @@ public class MyArrayList<T> {
16 16
 
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     public void add(T data) {
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-            Object[] tempArray = new Object[getSize() + 1];
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-            tempArray[size] = data;
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-            this.myArrayList = tempArray;
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-            setSizeBy1();
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+        Object[] tempArray = new Object[getSize() + 1];
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+        tempArray[size] = data;
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+        this.myArrayList = tempArray;
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+        setSizeBy1();
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     }
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+    public void add(T data, int index) {
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+        
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+    }
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+
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     public int getSize() {
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         return this.size;
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     }
@@ -79,4 +83,14 @@ public class MyArrayList<T> {
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     public boolean isEmpty() {
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         return (getSize() == 0);
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     }
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+
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+    public boolean contains(T data) {
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+
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+        for (int i = 0; i < getSize(); i++) {
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+            if (myArrayList[i].equals(data))
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+                return true;
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+        }
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+
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+        return false;
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+    }
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 }

+ 13
- 0
src/test/java/MyArrayListTest.java View File

@@ -68,4 +68,17 @@ public class MyArrayListTest {
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     public void testIsEmpty() {
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         Assert.assertFalse(stringList.isEmpty());
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     }
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+
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+    @Test
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+    public void testContainsTrue() {
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+        String expectedString = "Wilhelm spilled the tea";
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+
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+        Assert.assertTrue(stringList.contains(expectedString));
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+    }
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+
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+    @Test
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+    public void testContainsFalse() {
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+        String expectedString = "they moved the table";
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+        Assert.assertFalse(stringList.contains(expectedString));
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+    }
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 }