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Java 8 NullPointerException in Collectors.toMap
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13 Answers
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Get all inherited classes of an abstract class [duplicate]
...Data Solutions
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arrayfun can be significantly slower than an explicit loop in matlab. Why?
...ng out the computations, instead of using a function in your loop
tic
Soln3 = ones(T, N);
for t = 1:T
for n = 1:N
Soln3(t, n) = 3*x(t, n)^2 + 2*x(t, n) - 1;
end
end
toc
Time to compute on my computer:
Soln1 1.158446 seconds.
Soln2 10.392475 seconds.
Soln3 0.239023 seconds.
Oli...
Static method in a generic class?
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273
You can't use a class's generic type parameters in static methods or static fields. The class's ...
make_unique and perfect forwarding
...ohan Råde
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How can I use interface as a C# generic type constraint?
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134
The closest you can do (except for your base-interface approach) is "where T : class", meaning ...
How to use Jackson to deserialise an array of objects
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1735
First create a mapper :
import com.fasterxml.jackson.databind.ObjectMapper;// in play 2.3
Obje...
Query to list number of records in each table in a database
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319
If you're using SQL Server 2005 and up, you can also use this:
SELECT
t.NAME AS TableNam...
How to print binary tree diagram?
...nteger> n22 = new Node<Integer>(6);
Node<Integer> n23 = new Node<Integer>(3);
Node<Integer> n24 = new Node<Integer>(6);
Node<Integer> n31 = new Node<Integer>(5);
Node<Integer> n32 = new Node<Integer>(8);
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Getting the difference between two sets
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answered Sep 5 '13 at 19:42
Prabhaker APrabhaker A
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