Advanced Java Wrap-up

This section covered some of the more advanced topics in Java. You learned about:

• Exceptions: How to handle errors and exceptional situations in your code.
• Collections: How to use the Java Collections Framework to store and manipulate groups of objects.
• Streams: How to use the Streams API to process collections of data in a declarative way.
• Generics: How to write type-safe code that works with different types of objects.
• File I/O: How to read from and write to files.
• Threads: How to write multithreaded programs that can perform multiple tasks concurrently.

Exercise

Write a Java program that reads a list of words from a file, counts the frequency of each word, and then writes the results to a new file.

Requirements:

1. Create a text file named words.txt with a list of words, one word per line.
2. Write a program that reads the words from words.txt.
3. Use a Map to store the frequency of each word.
4. Use the Streams API to process the list of words.
5. Write the word frequencies to a new file named word_frequencies.txt.
6. Handle any potential IOExceptions that may occur.