collections tag

14 questions

1 answers
123 views
0

Can I change List to int[]?

I'm learning Java. Can I change the list to int[]? There is a method called List.toArray(), but the return data type is Object[]. I want to get an Integer[] or an int[] What should I do?Right now, I'm...

java array collections

2 years ago

1 answers
139 views
0

Can you change the array to Set more easily?

I want to change the array to Set in Java. java.util.Arrays.asList(Object[] a); I can use asList, but I want to find a cleaner way.

java collections array set

2 years ago

1 answers
101 views
0

What is the best way to filter a Java collection?

I want to filter java.util.Collection when implementing.

java filter collections

2 years ago

1 answers
120 views
0

How do I copy an ArrayList?

How do I copy ArrayList in Java 1.5?ArrayList<Dog> dogs = getDogs();ArrayList<Dog> clonedList = ...Copy each item of dogs...For example, if I want to copy dogs to the clonedList like this,...

java collections clone deep-copy

2 years ago

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