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12 changes: 7 additions & 5 deletions concepts/maps/about.md
Original file line number Diff line number Diff line change
Expand Up @@ -51,15 +51,15 @@ fruitPrices.get("apple"); // => 100
Use [containsKey][map-containskey-javadoc] to see if the map contains a particular key.

```java
fruitPrices.containsKey("apple"); // => true
fruitPrices.containsKey("apple"); // => true
fruitPrices.containsKey("orange"); // => false
```

Remove entries with [remove][map-remove-javadoc].

```java
fruitPrices.put("plum", 90); // Add plum to map
fruitPrices.remove("plum"); // Removes plum from map
fruitPrices.put("plum", 90); // Add plum to map
fruitPrices.remove("plum"); // Removes plum from map
```

The [size][map-size-javadoc] method returns the number of entries.
Expand All @@ -68,10 +68,10 @@ The [size][map-size-javadoc] method returns the number of entries.
fruitPrices.size(); // Returns 2
```

You can use the [keys] or [values] methods to obtain the keys or the values in a Map as a Set or collection respectively.
You can use the [keySet][map-keyset-javadoc] or [values][map-values-javadoc] methods to obtain the keys or the values in a Map as a Set or collection respectively.

```java
fruitPrices.keys(); // Returns "apple" and "pear" in a set
fruitPrices.keySet(); // Returns "apple" and "pear" in a set
fruitPrices.values(); // Returns 100 and 80, in a Collection
```

Expand Down Expand Up @@ -169,3 +169,5 @@ Calling methods like `put`, `remove` or `clear` results in an `UnsupportedOperat
[map-copyof-javadoc]: https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/Map.html#copyOf(java.util.Map)
[object-hashcode-javadoc]: https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html#hashCode()
[object-equals-javadoc]: https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)
[map-keyset-javadoc]: https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/Map.html#keySet()
[map-values-javadoc]: https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/Map.html#values()
12 changes: 7 additions & 5 deletions concepts/maps/introduction.md
Original file line number Diff line number Diff line change
Expand Up @@ -37,15 +37,15 @@ fruitPrices.get("apple"); // => 100
Use [containsKey][map-containskey-javadoc] to see if the map contains a particular key.

```java
fruitPrices.containsKey("apple"); // => true
fruitPrices.containsKey("apple"); // => true
fruitPrices.containsKey("orange"); // => false
```

Remove entries with [remove][map-remove-javadoc].

```java
fruitPrices.put("plum", 90); // Add plum to map
fruitPrices.remove("plum"); // Removes plum from map
fruitPrices.put("plum", 90); // Add plum to map
fruitPrices.remove("plum"); // Removes plum from map
```

The [size][map-size-javadoc] method returns the number of entries.
Expand All @@ -54,10 +54,10 @@ The [size][map-size-javadoc] method returns the number of entries.
fruitPrices.size(); // Returns 2
```

You can use the [keys] or [values] methods to obtain the keys or the values in a Map as a Set or collection respectively.studentScores
You can use the [keySet][map-keyset-javadoc] or [values][map-values-javadoc] methods to obtain the keys or the values in a Map as a Set or collection respectively.

```java
fruitPrices.keys(); // Returns "apple" and "pear" in a set
fruitPrices.keySet(); // Returns "apple" and "pear" in a set
fruitPrices.values(); // Returns 100 and 80, in a Collection
```

Expand All @@ -68,3 +68,5 @@ fruitPrices.values(); // Returns 100 and 80, in a Collection
[map-containskey-javadoc]: https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/Map.html#containsKey(java.lang.Object)
[map-remove-javadoc]: https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/Map.html#remove(java.lang.Object)
[map-size-javadoc]: https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/Map.html#size()
[map-keyset-javadoc]: https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/Map.html#keySet()
[map-values-javadoc]: https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/Map.html#values()
Original file line number Diff line number Diff line change
Expand Up @@ -39,15 +39,15 @@ fruitPrices.get("apple"); // => 100
Use [containsKey][map-containskey-javadoc] to see if the map contains a particular key.

```java
fruitPrices.containsKey("apple"); // => true
fruitPrices.containsKey("orange"); // => false
fruitPrices.containsKey("apple"); // => true
fruitPrices.containsKey("orange"); // => false
```

Remove entries with [remove][map-remove-javadoc].

```java
fruitPrices.put("plum", 90); // Add plum to map
fruitPrices.remove("plum"); // Removes plum from map
fruitPrices.put("plum", 90); // Add plum to map
fruitPrices.remove("plum"); // Removes plum from map
```

The [size][map-size-javadoc] method returns the number of entries.
Expand All @@ -56,10 +56,10 @@ The [size][map-size-javadoc] method returns the number of entries.
fruitPrices.size(); // Returns 2
```

You can use the [keys] or [values] methods to obtain the keys or the values in a Map as a Set or collection respectively.studentScores
You can use the [keySet][map-keyset-javadoc] or [values][map-values-javadoc] methods to obtain the keys or the values in a Map as a Set or collection respectively.

```java
fruitPrices.keys(); // Returns "apple" and "pear" in a set
fruitPrices.keySet(); // Returns "apple" and "pear" in a set
fruitPrices.values(); // Returns 100 and 80, in a Collection
```

Expand All @@ -70,3 +70,5 @@ fruitPrices.values(); // Returns 100 and 80, in a Collection
[map-containskey-javadoc]: https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/Map.html#containsKey(java.lang.Object)
[map-remove-javadoc]: https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/Map.html#remove(java.lang.Object)
[map-size-javadoc]: https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/Map.html#size()
[map-keyset-javadoc]: https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/Map.html#keySet()
[map-values-javadoc]: https://docs.oracle.com/en/java/javase/21/docs/api/java.base/java/util/Map.html#values()