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reflow paragraphs in section 6 #12

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reflow paragraphs in section 6 #12

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16 changes: 11 additions & 5 deletions 06-map.md
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Original file line number Diff line number Diff line change
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Map Improvements
---------

Map is one the most important data structure. In Java 8, a lot of goodies has been added to the Map API that will make it easy to work with them. We will look at all the enhancements made to them one by one. Every feature is shown along with its JUnit test case.
Map is one the most important data structure. In Java 8, a lot of goodies has
been added to the Map API that will make it easy to work with them. We will look
at all the enhancements made to them one by one. Every feature is shown along
with its JUnit test case.

## Create Map from List

Most of the times we want to create a map from existing data. Let's suppose we have a list of tasks, every task has an id and other associated data like title, description, etc.
Most of the times we want to create a map from existing data. Let's suppose we
have a list of tasks, every task has an id and other associated data like title,
description, etc.

```java
import static java.util.function.Function.identity;
Expand All @@ -26,8 +31,8 @@ public void shouldCreateMapFromTaskList() throws Exception {

## Using a different Map implementation


The default implementation used by `Collectors.toMap` is `HashMap`. You can also specify your own Map implementation by providing a supplier.
The default implementation used by `Collectors.toMap` is `HashMap`. You can also
specify your own Map implementation by providing a supplier.

```java
@Test
Expand All @@ -46,7 +51,8 @@ public void shouldCreateLinkedMapFromTaskList() throws Exception {

## Handling duplicates

One thing that we glossed over in the last example was what should happen if there are duplicates. To handle duplicates there is a argument
One thing that we glossed over in the last example was what should happen if
there are duplicates. To handle duplicates there is a argument

```java
@Test
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