Java: Convert a hash set to a List/ArrayList
9. Find Elements Less Than 7 in TreeSet
Write a Java program to convert a hash set to a List/ArrayList.
Sample Solution:
Java Code:
Sample Output:
Original Hash Set: [Red, White, Pink, Yellow, Black, Green] ArrayList contains: [Red, White, Pink, Yellow, Black, Green]
Pictorial Presentation:
Flowchart:

For more Practice: Solve these Related Problems:
- Write a Java program to use headSet() on a TreeSet to extract all numbers less than 7.
- Write a Java program to iterate through a TreeSet and print only those numbers below a given threshold.
- Write a Java program to filter a TreeSet using Java streams to collect numbers less than 7 into a new set.
- Write a Java program to remove all numbers greater than or equal to 7 from a TreeSet and display the remaining elements.
Go to:
PREV : Convert HashSet to TreeSet.
NEXT : Compare Two HashSets.
Java Code Editor:
Contribute your code and comments through Disqus.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.