Intermediate Quiz 5
1. How do you convert an ArrayList to an array?
2. Which keyword is used to stop a thread?
3. What is the output of: System.out.println(Math.max(4, 9));?
4. Which collection allows null keys and null values?
5. How do you check if a file exists in Java?
6. Which method is used to pause a thread for a specified time?
7. How do you create an immutable list in Java 9+?
8. Which package contains the ArrayList class?
9. What does the "volatile" keyword ensure?
10. Which interface defines compareTo() method for sorting?
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