Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 3 years ago.
Improve this question
I have a Map<Type, Data>
We need to convert the keySet of the map to a LinkedHashSet of String.
What is the most efficient way to do it using java 8 stream.
map.keySet().stream().map(Object::toString).collect(toCollection(LinkedHashSet::new));
Related
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 7 days ago.
Improve this question
{"setAsLanding":false,"ref":"test123","column":"medium","row":"large","title":"test123","appInNav":false}
how to read the value of setAsLanding.
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 9 months ago.
Improve this question
The example here: https://github.com/mapstruct/mapstruct-examples/blob/3457f37c24ea7799b0752cc7ee8307283ab09ad2/mapstruct-mapping-with-cycles/src/main/java/org/mapstruct/example/mapper/EmployeeMapper.java
The generated mapping will be like:
Employee toEmployee(EmployeeDto employeeDto, CycleAvoidingMappingContext context) {...}
In practice, how to get a valid CycleAvoidingMappingContext object ?
You use the constructor.
new CycleAvoidingMappingContext()
When in doubt, look for unit tests.
https://github.com/mapstruct/mapstruct-examples/blob/master/mapstruct-mapping-with-cycles/src/test/java/org/mapstruct/example/EmployeeMapperTest.java#L59
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 6 years ago.
Improve this question
how internal Implementation of TreeMap is done in Java? Does it use any tree (like : binary tree, red-black, B-tree) for arranging elements?
First line of the documentation:
A Red-Black tree based NavigableMap implementation.
Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 6 years ago.
Improve this question
does java have a function to make a direct conversion between Little and BigEndien?
Several. Byte order can be swapped using ByteBuffer or Integer/Long.reverseBytes
Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 8 years ago.
Improve this question
How can I access userObject in DefaultMutableTreeNode
How can I modify the user object or extract the values defined in it?
What about the methods setUserObject and getUserObject?