Top "Primitive-types" questions

Casting an instance of Object to primitive type or Object Type

when I need to cast an instance of type Object to a double , which of the following is better and …

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Java: Should I use float or Float?

My colleague told me that I should use float whenever possible to reduce the object creation and increase the performance. …

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When to use primitive and when reference types in Java

In which case should you use primitive types(int) or reference types (Integer)? This question sparked my curiosity.

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SonarLint Use the primitive boolean expression here

I have the following class Properties: class Properties { private Boolean enabled; public Boolean getEnabled() { return enabled; } } If I write the …

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Java: Why can't I cast int to Long

All numbers in Java are supposed to be of int type. The following line is legal in Java>1.5 Short …

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Using Streams with primitives data types and corresponding wrappers

While playing around with Java8's Streams-API, I stumbled over the following: To convert an array of primitive wrapper classe …

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What is the difference between value types and primitive types?

Reading a book about C# I noticed that sometimes is mentioned value type and sometimes primitive type for some data …

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"Generic" solution for primitive array?

I have classes that for processing primitive array input: CharArrayExtractor for char[], ByteArrayExtractor for byte[], IntegerArrayExtractor for int[], ... public void …

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String and Character Array in Java

I am a student who has just shifted from C++ to Java. In Java what could be the main reason …

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Do STL maps initialize primitive types on insert?

I have a std::map like this: map<wstring,int> Scores; It stores names of players and scores. …

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